diff --git a/actions/redoc/template.hbs b/actions/redoc/template.hbs
index 998e7de7..d1785e2d 100644
--- a/actions/redoc/template.hbs
+++ b/actions/redoc/template.hbs
@@ -158,6 +158,12 @@
   </script>
 
   <script src="js/determine_widget.js"></script>
+  <script defer src="https://widget.kapa.ai/kapa-widget.bundle.js" 
+    data-website-id="18245f0e-15aa-45f4-b28c-b7a72fa8315b" 
+    data-project-name="Lob" 
+    data-project-color="#010310" 
+    data-project-logo="https://avatars.githubusercontent.com/u/4955790?s=280&v=4" 
+    data-modal-example-questions="How do I get started with the API,How does mailpiece tracking work?"></script>
 
   {{{redocHead}}}
   {{#unless disableGoogleFont}}<link href="https://fonts.googleapis.com/css?family=Montserrat:300,400,700|Roboto:300,400,700" rel="stylesheet">{{/unless}}
diff --git a/docs/index.html b/docs/index.html
index f9a26dab..c7206ac1 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -158,6 +158,7 @@
   </script>
 
   <script src="js/determine_widget.js"></script>
+  <script defer src="https://widget.kapa.ai/kapa-widget.bundle.js" data-website-id="18245f0e-15aa-45f4-b28c-b7a72fa8315b" data-project-name=“Lob" data-project-color="#010310" data-project-logo="https://avatars.githubusercontent.com/u/4955790?s=280&v=4" data-modal-example-questions="How do I get started with the API,How does mailpiece tracking work?"></script>
 
   <script>/*! For license information please see redoc.standalone.js.LICENSE.txt */
 !function(e,t){"object"==typeof exports&&"object"==typeof module?module.exports=t(require("null")):"function"==typeof define&&define.amd?define(["null"],t):"object"==typeof exports?exports.Redoc=t(require("null")):e.Redoc=t(e.null)}(this,(function(e){return function(){var t={5499:function(e,t,n){"use strict";Object.defineProperty(t,"__esModule",{value:!0}),t.CodeGen=t.Name=t.nil=t.stringify=t.str=t._=t.KeywordCxt=void 0;const r=n(3325),o=n(6479),i=n(5522),a=n(4137),s=["/properties"],l="http://json-schema.org/draft-07/schema";class c extends r.default{_addVocabularies(){super._addVocabularies(),o.default.forEach((e=>this.addVocabulary(e))),this.opts.discriminator&&this.addKeyword(i.default)}_addDefaultMetaSchema(){if(super._addDefaultMetaSchema(),!this.opts.meta)return;const e=this.opts.$data?this.$dataMetaSchema(a,s):a;this.addMetaSchema(e,l,!1),this.refs["http://json-schema.org/schema"]=l}defaultMeta(){return this.opts.defaultMeta=super.defaultMeta()||(this.getSchema(l)?l:void 0)}}e.exports=t=c,Object.defineProperty(t,"__esModule",{value:!0}),t.default=c;var u=n(1321);Object.defineProperty(t,"KeywordCxt",{enumerable:!0,get:function(){return u.KeywordCxt}});var p=n(4475);Object.defineProperty(t,"_",{enumerable:!0,get:function(){return p._}}),Object.defineProperty(t,"str",{enumerable:!0,get:function(){return p.str}}),Object.defineProperty(t,"stringify",{enumerable:!0,get:function(){return p.stringify}}),Object.defineProperty(t,"nil",{enumerable:!0,get:function(){return p.nil}}),Object.defineProperty(t,"Name",{enumerable:!0,get:function(){return p.Name}}),Object.defineProperty(t,"CodeGen",{enumerable:!0,get:function(){return p.CodeGen}})},4667:function(e,t){"use strict";Object.defineProperty(t,"__esModule",{value:!0}),t.regexpCode=t.getProperty=t.safeStringify=t.stringify=t.strConcat=t.addCodeArg=t.str=t._=t.nil=t._Code=t.Name=t.IDENTIFIER=t._CodeOrName=void 0;class n{}t._CodeOrName=n,t.IDENTIFIER=/^[a-z$_][a-z$_0-9]*$/i;class r extends n{constructor(e){if(super(),!t.IDENTIFIER.test(e))throw new Error("CodeGen: name must be a valid identifier");this.str=e}toString(){return this.str}emptyStr(){return!1}get names(){return{[this.str]:1}}}t.Name=r;class o extends n{constructor(e){super(),this._items="string"==typeof e?[e]:e}toString(){return this.str}emptyStr(){if(this._items.length>1)return!1;const e=this._items[0];return""===e||'""'===e}get str(){var e;return null!==(e=this._str)&&void 0!==e?e:this._str=this._items.reduce(((e,t)=>`${e}${t}`),"")}get names(){var e;return null!==(e=this._names)&&void 0!==e?e:this._names=this._items.reduce(((e,t)=>(t instanceof r&&(e[t.str]=(e[t.str]||0)+1),e)),{})}}function i(e,...t){const n=[e[0]];let r=0;for(;r<t.length;)l(n,t[r]),n.push(e[++r]);return new o(n)}t._Code=o,t.nil=new o(""),t._=i;const a=new o("+");function s(e,...t){const n=[u(e[0])];let r=0;for(;r<t.length;)n.push(a),l(n,t[r]),n.push(a,u(e[++r]));return function(e){let t=1;for(;t<e.length-1;){if(e[t]===a){const n=c(e[t-1],e[t+1]);if(void 0!==n){e.splice(t-1,3,n);continue}e[t++]="+"}t++}}(n),new o(n)}function l(e,t){var n;t instanceof o?e.push(...t._items):t instanceof r?e.push(t):e.push("number"==typeof(n=t)||"boolean"==typeof n||null===n?n:u(Array.isArray(n)?n.join(","):n))}function c(e,t){if('""'===t)return e;if('""'===e)return t;if("string"==typeof e){if(t instanceof r||'"'!==e[e.length-1])return;return"string"!=typeof t?`${e.slice(0,-1)}${t}"`:'"'===t[0]?e.slice(0,-1)+t.slice(1):void 0}return"string"!=typeof t||'"'!==t[0]||e instanceof r?void 0:`"${e}${t.slice(1)}`}function u(e){return JSON.stringify(e).replace(/\u2028/g,"\\u2028").replace(/\u2029/g,"\\u2029")}t.str=s,t.addCodeArg=l,t.strConcat=function(e,t){return t.emptyStr()?e:e.emptyStr()?t:s`${e}${t}`},t.stringify=function(e){return new o(u(e))},t.safeStringify=u,t.getProperty=function(e){return"string"==typeof e&&t.IDENTIFIER.test(e)?new o(`.${e}`):i`[${e}]`},t.regexpCode=function(e){return new o(e.toString())}},4475:function(e,t,n){"use strict";Object.defineProperty(t,"__esModule",{value:!0}),t.or=t.and=t.not=t.CodeGen=t.operators=t.varKinds=t.ValueScopeName=t.ValueScope=t.Scope=t.Name=t.regexpCode=t.stringify=t.getProperty=t.nil=t.strConcat=t.str=t._=void 0;const r=n(4667),o=n(7791);var i=n(4667);Object.defineProperty(t,"_",{enumerable:!0,get:function(){return i._}}),Object.defineProperty(t,"str",{enumerable:!0,get:function(){return i.str}}),Object.defineProperty(t,"strConcat",{enumerable:!0,get:function(){return i.strConcat}}),Object.defineProperty(t,"nil",{enumerable:!0,get:function(){return i.nil}}),Object.defineProperty(t,"getProperty",{enumerable:!0,get:function(){return i.getProperty}}),Object.defineProperty(t,"stringify",{enumerable:!0,get:function(){return i.stringify}}),Object.defineProperty(t,"regexpCode",{enumerable:!0,get:function(){return i.regexpCode}}),Object.defineProperty(t,"Name",{enumerable:!0,get:function(){return i.Name}});var a=n(7791);Object.defineProperty(t,"Scope",{enumerable:!0,get:function(){return a.Scope}}),Object.defineProperty(t,"ValueScope",{enumerable:!0,get:function(){return a.ValueScope}}),Object.defineProperty(t,"ValueScopeName",{enumerable:!0,get:function(){return a.ValueScopeName}}),Object.defineProperty(t,"varKinds",{enumerable:!0,get:function(){return a.varKinds}}),t.operators={GT:new r._Code(">"),GTE:new r._Code(">="),LT:new r._Code("<"),LTE:new r._Code("<="),EQ:new r._Code("==="),NEQ:new r._Code("!=="),NOT:new r._Code("!"),OR:new r._Code("||"),AND:new r._Code("&&"),ADD:new r._Code("+")};class s{optimizeNodes(){return this}optimizeNames(e,t){return this}}class l extends s{constructor(e,t,n){super(),this.varKind=e,this.name=t,this.rhs=n}render({es5:e,_n:t}){const n=e?o.varKinds.var:this.varKind,r=void 0===this.rhs?"":` = ${this.rhs}`;return`${n} ${this.name}${r};`+t}optimizeNames(e,t){if(e[this.name.str])return this.rhs&&(this.rhs=C(this.rhs,e,t)),this}get names(){return this.rhs instanceof r._CodeOrName?this.rhs.names:{}}}class c extends s{constructor(e,t,n){super(),this.lhs=e,this.rhs=t,this.sideEffects=n}render({_n:e}){return`${this.lhs} = ${this.rhs};`+e}optimizeNames(e,t){if(!(this.lhs instanceof r.Name)||e[this.lhs.str]||this.sideEffects)return this.rhs=C(this.rhs,e,t),this}get names(){return R(this.lhs instanceof r.Name?{}:{...this.lhs.names},this.rhs)}}class u extends c{constructor(e,t,n,r){super(e,n,r),this.op=t}render({_n:e}){return`${this.lhs} ${this.op}= ${this.rhs};`+e}}class p extends s{constructor(e){super(),this.label=e,this.names={}}render({_n:e}){return`${this.label}:`+e}}class d extends s{constructor(e){super(),this.label=e,this.names={}}render({_n:e}){return`break${this.label?` ${this.label}`:""};`+e}}class f extends s{constructor(e){super(),this.error=e}render({_n:e}){return`throw ${this.error};`+e}get names(){return this.error.names}}class h extends s{constructor(e){super(),this.code=e}render({_n:e}){return`${this.code};`+e}optimizeNodes(){return`${this.code}`?this:void 0}optimizeNames(e,t){return this.code=C(this.code,e,t),this}get names(){return this.code instanceof r._CodeOrName?this.code.names:{}}}class m extends s{constructor(e=[]){super(),this.nodes=e}render(e){return this.nodes.reduce(((t,n)=>t+n.render(e)),"")}optimizeNodes(){const{nodes:e}=this;let t=e.length;for(;t--;){const n=e[t].optimizeNodes();Array.isArray(n)?e.splice(t,1,...n):n?e[t]=n:e.splice(t,1)}return e.length>0?this:void 0}optimizeNames(e,t){const{nodes:n}=this;let r=n.length;for(;r--;){const o=n[r];o.optimizeNames(e,t)||(j(e,o.names),n.splice(r,1))}return n.length>0?this:void 0}get names(){return this.nodes.reduce(((e,t)=>$(e,t.names)),{})}}class g extends m{render(e){return"{"+e._n+super.render(e)+"}"+e._n}}class y extends m{}class v extends g{}v.kind="else";class b extends g{constructor(e,t){super(t),this.condition=e}render(e){let t=`if(${this.condition})`+super.render(e);return this.else&&(t+="else "+this.else.render(e)),t}optimizeNodes(){super.optimizeNodes();const e=this.condition;if(!0===e)return this.nodes;let t=this.else;if(t){const e=t.optimizeNodes();t=this.else=Array.isArray(e)?new v(e):e}return t?!1===e?t instanceof b?t:t.nodes:this.nodes.length?this:new b(T(e),t instanceof b?[t]:t.nodes):!1!==e&&this.nodes.length?this:void 0}optimizeNames(e,t){var n;if(this.else=null===(n=this.else)||void 0===n?void 0:n.optimizeNames(e,t),super.optimizeNames(e,t)||this.else)return this.condition=C(this.condition,e,t),this}get names(){const e=super.names;return R(e,this.condition),this.else&&$(e,this.else.names),e}}b.kind="if";class w extends g{}w.kind="for";class x extends w{constructor(e){super(),this.iteration=e}render(e){return`for(${this.iteration})`+super.render(e)}optimizeNames(e,t){if(super.optimizeNames(e,t))return this.iteration=C(this.iteration,e,t),this}get names(){return $(super.names,this.iteration.names)}}class k extends w{constructor(e,t,n,r){super(),this.varKind=e,this.name=t,this.from=n,this.to=r}render(e){const t=e.es5?o.varKinds.var:this.varKind,{name:n,from:r,to:i}=this;return`for(${t} ${n}=${r}; ${n}<${i}; ${n}++)`+super.render(e)}get names(){const e=R(super.names,this.from);return R(e,this.to)}}class _ extends w{constructor(e,t,n,r){super(),this.loop=e,this.varKind=t,this.name=n,this.iterable=r}render(e){return`for(${this.varKind} ${this.name} ${this.loop} ${this.iterable})`+super.render(e)}optimizeNames(e,t){if(super.optimizeNames(e,t))return this.iterable=C(this.iterable,e,t),this}get names(){return $(super.names,this.iterable.names)}}class O extends g{constructor(e,t,n){super(),this.name=e,this.args=t,this.async=n}render(e){return`${this.async?"async ":""}function ${this.name}(${this.args})`+super.render(e)}}O.kind="func";class S extends m{render(e){return"return "+super.render(e)}}S.kind="return";class E extends g{render(e){let t="try"+super.render(e);return this.catch&&(t+=this.catch.render(e)),this.finally&&(t+=this.finally.render(e)),t}optimizeNodes(){var e,t;return super.optimizeNodes(),null===(e=this.catch)||void 0===e||e.optimizeNodes(),null===(t=this.finally)||void 0===t||t.optimizeNodes(),this}optimizeNames(e,t){var n,r;return super.optimizeNames(e,t),null===(n=this.catch)||void 0===n||n.optimizeNames(e,t),null===(r=this.finally)||void 0===r||r.optimizeNames(e,t),this}get names(){const e=super.names;return this.catch&&$(e,this.catch.names),this.finally&&$(e,this.finally.names),e}}class P extends g{constructor(e){super(),this.error=e}render(e){return`catch(${this.error})`+super.render(e)}}P.kind="catch";class A extends g{render(e){return"finally"+super.render(e)}}function $(e,t){for(const n in t)e[n]=(e[n]||0)+(t[n]||0);return e}function R(e,t){return t instanceof r._CodeOrName?$(e,t.names):e}function C(e,t,n){return e instanceof r.Name?i(e):(o=e)instanceof r._Code&&o._items.some((e=>e instanceof r.Name&&1===t[e.str]&&void 0!==n[e.str]))?new r._Code(e._items.reduce(((e,t)=>(t instanceof r.Name&&(t=i(t)),t instanceof r._Code?e.push(...t._items):e.push(t),e)),[])):e;var o;function i(e){const r=n[e.str];return void 0===r||1!==t[e.str]?e:(delete t[e.str],r)}}function j(e,t){for(const n in t)e[n]=(e[n]||0)-(t[n]||0)}function T(e){return"boolean"==typeof e||"number"==typeof e||null===e?!e:r._`!${L(e)}`}A.kind="finally",t.CodeGen=class{constructor(e,t={}){this._values={},this._blockStarts=[],this._constants={},this.opts={...t,_n:t.lines?"\n":""},this._extScope=e,this._scope=new o.Scope({parent:e}),this._nodes=[new y]}toString(){return this._root.render(this.opts)}name(e){return this._scope.name(e)}scopeName(e){return this._extScope.name(e)}scopeValue(e,t){const n=this._extScope.value(e,t);return(this._values[n.prefix]||(this._values[n.prefix]=new Set)).add(n),n}getScopeValue(e,t){return this._extScope.getValue(e,t)}scopeRefs(e){return this._extScope.scopeRefs(e,this._values)}scopeCode(){return this._extScope.scopeCode(this._values)}_def(e,t,n,r){const o=this._scope.toName(t);return void 0!==n&&r&&(this._constants[o.str]=n),this._leafNode(new l(e,o,n)),o}const(e,t,n){return this._def(o.varKinds.const,e,t,n)}let(e,t,n){return this._def(o.varKinds.let,e,t,n)}var(e,t,n){return this._def(o.varKinds.var,e,t,n)}assign(e,t,n){return this._leafNode(new c(e,t,n))}add(e,n){return this._leafNode(new u(e,t.operators.ADD,n))}code(e){return"function"==typeof e?e():e!==r.nil&&this._leafNode(new h(e)),this}object(...e){const t=["{"];for(const[n,o]of e)t.length>1&&t.push(","),t.push(n),(n!==o||this.opts.es5)&&(t.push(":"),r.addCodeArg(t,o));return t.push("}"),new r._Code(t)}if(e,t,n){if(this._blockNode(new b(e)),t&&n)this.code(t).else().code(n).endIf();else if(t)this.code(t).endIf();else if(n)throw new Error('CodeGen: "else" body without "then" body');return this}elseIf(e){return this._elseNode(new b(e))}else(){return this._elseNode(new v)}endIf(){return this._endBlockNode(b,v)}_for(e,t){return this._blockNode(e),t&&this.code(t).endFor(),this}for(e,t){return this._for(new x(e),t)}forRange(e,t,n,r,i=(this.opts.es5?o.varKinds.var:o.varKinds.let)){const a=this._scope.toName(e);return this._for(new k(i,a,t,n),(()=>r(a)))}forOf(e,t,n,i=o.varKinds.const){const a=this._scope.toName(e);if(this.opts.es5){const e=t instanceof r.Name?t:this.var("_arr",t);return this.forRange("_i",0,r._`${e}.length`,(t=>{this.var(a,r._`${e}[${t}]`),n(a)}))}return this._for(new _("of",i,a,t),(()=>n(a)))}forIn(e,t,n,i=(this.opts.es5?o.varKinds.var:o.varKinds.const)){if(this.opts.ownProperties)return this.forOf(e,r._`Object.keys(${t})`,n);const a=this._scope.toName(e);return this._for(new _("in",i,a,t),(()=>n(a)))}endFor(){return this._endBlockNode(w)}label(e){return this._leafNode(new p(e))}break(e){return this._leafNode(new d(e))}return(e){const t=new S;if(this._blockNode(t),this.code(e),1!==t.nodes.length)throw new Error('CodeGen: "return" should have one node');return this._endBlockNode(S)}try(e,t,n){if(!t&&!n)throw new Error('CodeGen: "try" without "catch" and "finally"');const r=new E;if(this._blockNode(r),this.code(e),t){const e=this.name("e");this._currNode=r.catch=new P(e),t(e)}return n&&(this._currNode=r.finally=new A,this.code(n)),this._endBlockNode(P,A)}throw(e){return this._leafNode(new f(e))}block(e,t){return this._blockStarts.push(this._nodes.length),e&&this.code(e).endBlock(t),this}endBlock(e){const t=this._blockStarts.pop();if(void 0===t)throw new Error("CodeGen: not in self-balancing block");const n=this._nodes.length-t;if(n<0||void 0!==e&&n!==e)throw new Error(`CodeGen: wrong number of nodes: ${n} vs ${e} expected`);return this._nodes.length=t,this}func(e,t=r.nil,n,o){return this._blockNode(new O(e,t,n)),o&&this.code(o).endFunc(),this}endFunc(){return this._endBlockNode(O)}optimize(e=1){for(;e-- >0;)this._root.optimizeNodes(),this._root.optimizeNames(this._root.names,this._constants)}_leafNode(e){return this._currNode.nodes.push(e),this}_blockNode(e){this._currNode.nodes.push(e),this._nodes.push(e)}_endBlockNode(e,t){const n=this._currNode;if(n instanceof e||t&&n instanceof t)return this._nodes.pop(),this;throw new Error(`CodeGen: not in block "${t?`${e.kind}/${t.kind}`:e.kind}"`)}_elseNode(e){const t=this._currNode;if(!(t instanceof b))throw new Error('CodeGen: "else" without "if"');return this._currNode=t.else=e,this}get _root(){return this._nodes[0]}get _currNode(){const e=this._nodes;return e[e.length-1]}set _currNode(e){const t=this._nodes;t[t.length-1]=e}},t.not=T;const I=D(t.operators.AND);t.and=function(...e){return e.reduce(I)};const N=D(t.operators.OR);function D(e){return(t,n)=>t===r.nil?n:n===r.nil?t:r._`${L(t)} ${e} ${L(n)}`}function L(e){return e instanceof r.Name?e:r._`(${e})`}t.or=function(...e){return e.reduce(N)}},7791:function(e,t,n){"use strict";Object.defineProperty(t,"__esModule",{value:!0}),t.ValueScope=t.ValueScopeName=t.Scope=t.varKinds=t.UsedValueState=void 0;const r=n(4667);class o extends Error{constructor(e){super(`CodeGen: "code" for ${e} not defined`),this.value=e.value}}var i;!function(e){e[e.Started=0]="Started",e[e.Completed=1]="Completed"}(i=t.UsedValueState||(t.UsedValueState={})),t.varKinds={const:new r.Name("const"),let:new r.Name("let"),var:new r.Name("var")};class a{constructor({prefixes:e,parent:t}={}){this._names={},this._prefixes=e,this._parent=t}toName(e){return e instanceof r.Name?e:this.name(e)}name(e){return new r.Name(this._newName(e))}_newName(e){return`${e}${(this._names[e]||this._nameGroup(e)).index++}`}_nameGroup(e){var t,n;if((null===(n=null===(t=this._parent)||void 0===t?void 0:t._prefixes)||void 0===n?void 0:n.has(e))||this._prefixes&&!this._prefixes.has(e))throw new Error(`CodeGen: prefix "${e}" is not allowed in this scope`);return this._names[e]={prefix:e,index:0}}}t.Scope=a;class s extends r.Name{constructor(e,t){super(t),this.prefix=e}setValue(e,{property:t,itemIndex:n}){this.value=e,this.scopePath=r._`.${new r.Name(t)}[${n}]`}}t.ValueScopeName=s;const l=r._`\n`;t.ValueScope=class extends a{constructor(e){super(e),this._values={},this._scope=e.scope,this.opts={...e,_n:e.lines?l:r.nil}}get(){return this._scope}name(e){return new s(e,this._newName(e))}value(e,t){var n;if(void 0===t.ref)throw new Error("CodeGen: ref must be passed in value");const r=this.toName(e),{prefix:o}=r,i=null!==(n=t.key)&&void 0!==n?n:t.ref;let a=this._values[o];if(a){const e=a.get(i);if(e)return e}else a=this._values[o]=new Map;a.set(i,r);const s=this._scope[o]||(this._scope[o]=[]),l=s.length;return s[l]=t.ref,r.setValue(t,{property:o,itemIndex:l}),r}getValue(e,t){const n=this._values[e];if(n)return n.get(t)}scopeRefs(e,t=this._values){return this._reduceValues(t,(t=>{if(void 0===t.scopePath)throw new Error(`CodeGen: name "${t}" has no value`);return r._`${e}${t.scopePath}`}))}scopeCode(e=this._values,t,n){return this._reduceValues(e,(e=>{if(void 0===e.value)throw new Error(`CodeGen: name "${e}" has no value`);return e.value.code}),t,n)}_reduceValues(e,n,a={},s){let l=r.nil;for(const c in e){const u=e[c];if(!u)continue;const p=a[c]=a[c]||new Map;u.forEach((e=>{if(p.has(e))return;p.set(e,i.Started);let a=n(e);if(a){const n=this.opts.es5?t.varKinds.var:t.varKinds.const;l=r._`${l}${n} ${e} = ${a};${this.opts._n}`}else{if(!(a=null==s?void 0:s(e)))throw new o(e);l=r._`${l}${a}${this.opts._n}`}p.set(e,i.Completed)}))}return l}}},1885:function(e,t,n){"use strict";Object.defineProperty(t,"__esModule",{value:!0}),t.extendErrors=t.resetErrorsCount=t.reportExtraError=t.reportError=t.keyword$DataError=t.keywordError=void 0;const r=n(4475),o=n(6124),i=n(5018);function a(e,t){const n=e.const("err",t);e.if(r._`${i.default.vErrors} === null`,(()=>e.assign(i.default.vErrors,r._`[${n}]`)),r._`${i.default.vErrors}.push(${n})`),e.code(r._`${i.default.errors}++`)}function s(e,t){const{gen:n,validateName:o,schemaEnv:i}=e;i.$async?n.throw(r._`new ${e.ValidationError}(${t})`):(n.assign(r._`${o}.errors`,t),n.return(!1))}t.keywordError={message:({keyword:e})=>r.str`should pass "${e}" keyword validation`},t.keyword$DataError={message:({keyword:e,schemaType:t})=>t?r.str`"${e}" keyword must be ${t} ($data)`:r.str`"${e}" keyword is invalid ($data)`},t.reportError=function(e,n=t.keywordError,o,i){const{it:l}=e,{gen:u,compositeRule:p,allErrors:d}=l,f=c(e,n,o);(null!=i?i:p||d)?a(u,f):s(l,r._`[${f}]`)},t.reportExtraError=function(e,n=t.keywordError,r){const{it:o}=e,{gen:l,compositeRule:u,allErrors:p}=o;a(l,c(e,n,r)),u||p||s(o,i.default.vErrors)},t.resetErrorsCount=function(e,t){e.assign(i.default.errors,t),e.if(r._`${i.default.vErrors} !== null`,(()=>e.if(t,(()=>e.assign(r._`${i.default.vErrors}.length`,t)),(()=>e.assign(i.default.vErrors,null)))))},t.extendErrors=function({gen:e,keyword:t,schemaValue:n,data:o,errsCount:a,it:s}){if(void 0===a)throw new Error("ajv implementation error");const l=e.name("err");e.forRange("i",a,i.default.errors,(a=>{e.const(l,r._`${i.default.vErrors}[${a}]`),e.if(r._`${l}.instancePath === undefined`,(()=>e.assign(r._`${l}.instancePath`,r.strConcat(i.default.instancePath,s.errorPath)))),e.assign(r._`${l}.schemaPath`,r.str`${s.errSchemaPath}/${t}`),s.opts.verbose&&(e.assign(r._`${l}.schema`,n),e.assign(r._`${l}.data`,o))}))};const l={keyword:new r.Name("keyword"),schemaPath:new r.Name("schemaPath"),params:new r.Name("params"),propertyName:new r.Name("propertyName"),message:new r.Name("message"),schema:new r.Name("schema"),parentSchema:new r.Name("parentSchema")};function c(e,t,n){const{createErrors:o}=e.it;return!1===o?r._`{}`:function(e,t,n={}){const{gen:o,it:a}=e,s=[u(a,n),p(e,n)];return function(e,{params:t,message:n},o){const{keyword:a,data:s,schemaValue:c,it:u}=e,{opts:p,propertyName:d,topSchemaRef:f,schemaPath:h}=u;o.push([l.keyword,a],[l.params,"function"==typeof t?t(e):t||r._`{}`]),p.messages&&o.push([l.message,"function"==typeof n?n(e):n]),p.verbose&&o.push([l.schema,c],[l.parentSchema,r._`${f}${h}`],[i.default.data,s]),d&&o.push([l.propertyName,d])}(e,t,s),o.object(...s)}(e,t,n)}function u({errorPath:e},{instancePath:t}){const n=t?r.str`${e}${o.getErrorPath(t,o.Type.Str)}`:e;return[i.default.instancePath,r.strConcat(i.default.instancePath,n)]}function p({keyword:e,it:{errSchemaPath:t}},{schemaPath:n,parentSchema:i}){let a=i?t:r.str`${t}/${e}`;return n&&(a=r.str`${a}${o.getErrorPath(n,o.Type.Str)}`),[l.schemaPath,a]}},7805:function(e,t,n){"use strict";Object.defineProperty(t,"__esModule",{value:!0}),t.resolveSchema=t.getCompilingSchema=t.resolveRef=t.compileSchema=t.SchemaEnv=void 0;const r=n(4475),o=n(8451),i=n(5018),a=n(9826),s=n(6124),l=n(1321),c=n(540);class u{constructor(e){var t;let n;this.refs={},this.dynamicAnchors={},"object"==typeof e.schema&&(n=e.schema),this.schema=e.schema,this.schemaId=e.schemaId,this.root=e.root||this,this.baseId=null!==(t=e.baseId)&&void 0!==t?t:a.normalizeId(null==n?void 0:n[e.schemaId||"$id"]),this.schemaPath=e.schemaPath,this.localRefs=e.localRefs,this.meta=e.meta,this.$async=null==n?void 0:n.$async,this.refs={}}}function p(e){const t=f.call(this,e);if(t)return t;const n=a.getFullPath(e.root.baseId),{es5:s,lines:c}=this.opts.code,{ownProperties:u}=this.opts,p=new r.CodeGen(this.scope,{es5:s,lines:c,ownProperties:u});let d;e.$async&&(d=p.scopeValue("Error",{ref:o.default,code:r._`require("ajv/dist/runtime/validation_error").default`}));const h=p.scopeName("validate");e.validateName=h;const m={gen:p,allErrors:this.opts.allErrors,data:i.default.data,parentData:i.default.parentData,parentDataProperty:i.default.parentDataProperty,dataNames:[i.default.data],dataPathArr:[r.nil],dataLevel:0,dataTypes:[],definedProperties:new Set,topSchemaRef:p.scopeValue("schema",!0===this.opts.code.source?{ref:e.schema,code:r.stringify(e.schema)}:{ref:e.schema}),validateName:h,ValidationError:d,schema:e.schema,schemaEnv:e,rootId:n,baseId:e.baseId||n,schemaPath:r.nil,errSchemaPath:e.schemaPath||(this.opts.jtd?"":"#"),errorPath:r._`""`,opts:this.opts,self:this};let g;try{this._compilations.add(e),l.validateFunctionCode(m),p.optimize(this.opts.code.optimize);const t=p.toString();g=`const visitedNodesForRef = new WeakMap(); ${p.scopeRefs(i.default.scope)}return ${t}`,this.opts.code.process&&(g=this.opts.code.process(g,e));const n=new Function(`${i.default.self}`,`${i.default.scope}`,g)(this,this.scope.get());if(this.scope.value(h,{ref:n}),n.errors=null,n.schema=e.schema,n.schemaEnv=e,e.$async&&(n.$async=!0),!0===this.opts.code.source&&(n.source={validateName:h,validateCode:t,scopeValues:p._values}),this.opts.unevaluated){const{props:e,items:t}=m;n.evaluated={props:e instanceof r.Name?void 0:e,items:t instanceof r.Name?void 0:t,dynamicProps:e instanceof r.Name,dynamicItems:t instanceof r.Name},n.source&&(n.source.evaluated=r.stringify(n.evaluated))}return e.validate=n,e}catch(t){throw delete e.validate,delete e.validateName,g&&this.logger.error("Error compiling schema, function code:",g),t}finally{this._compilations.delete(e)}}function d(e){return a.inlineRef(e.schema,this.opts.inlineRefs)?e.schema:e.validate?e:p.call(this,e)}function f(e){for(const r of this._compilations)if(n=e,(t=r).schema===n.schema&&t.root===n.root&&t.baseId===n.baseId)return r;var t,n}function h(e,t){let n;for(;"string"==typeof(n=this.refs[t]);)t=n;return n||this.schemas[t]||m.call(this,e,t)}function m(e,t){const n=c.parse(t),r=a._getFullPath(n);let o=a.getFullPath(e.baseId);if(Object.keys(e.schema).length>0&&r===o)return y.call(this,n,e);const i=a.normalizeId(r),s=this.refs[i]||this.schemas[i];if("string"==typeof s){const t=m.call(this,e,s);if("object"!=typeof(null==t?void 0:t.schema))return;return y.call(this,n,t)}if("object"==typeof(null==s?void 0:s.schema)){if(s.validate||p.call(this,s),i===a.normalizeId(t)){const{schema:t}=s,{schemaId:n}=this.opts,r=t[n];return r&&(o=a.resolveUrl(o,r)),new u({schema:t,schemaId:n,root:e,baseId:o})}return y.call(this,n,s)}}t.SchemaEnv=u,t.compileSchema=p,t.resolveRef=function(e,t,n){var r;const o=a.resolveUrl(t,n),i=e.refs[o];if(i)return i;let s=h.call(this,e,o);if(void 0===s){const n=null===(r=e.localRefs)||void 0===r?void 0:r[o],{schemaId:i}=this.opts;n&&(s=new u({schema:n,schemaId:i,root:e,baseId:t}))}if(void 0===s&&this.opts.loadSchemaSync){const r=this.opts.loadSchemaSync(t,n,o);!r||this.refs[o]||this.schemas[o]||(this.addSchema(r,o,void 0),s=h.call(this,e,o))}return void 0!==s?e.refs[o]=d.call(this,s):void 0},t.getCompilingSchema=f,t.resolveSchema=m;const g=new Set(["properties","patternProperties","enum","dependencies","definitions"]);function y(e,{baseId:t,schema:n,root:r}){var o;if("/"!==(null===(o=e.fragment)||void 0===o?void 0:o[0]))return;for(const r of e.fragment.slice(1).split("/")){if("boolean"==typeof n)return;if(void 0===(n=n[s.unescapeFragment(r)]))return;const e="object"==typeof n&&n[this.opts.schemaId];!g.has(r)&&e&&(t=a.resolveUrl(t,e))}let i;if("boolean"!=typeof n&&n.$ref&&!s.schemaHasRulesButRef(n,this.RULES)){const e=a.resolveUrl(t,n.$ref);i=m.call(this,r,e)}const{schemaId:l}=this.opts;return i=i||new u({schema:n,schemaId:l,root:r,baseId:t}),i.schema!==i.root.schema?i:void 0}},5018:function(e,t,n){"use strict";Object.defineProperty(t,"__esModule",{value:!0});const r=n(4475),o={data:new r.Name("data"),valCxt:new r.Name("valCxt"),instancePath:new r.Name("instancePath"),parentData:new r.Name("parentData"),parentDataProperty:new r.Name("parentDataProperty"),rootData:new r.Name("rootData"),dynamicAnchors:new r.Name("dynamicAnchors"),vErrors:new r.Name("vErrors"),errors:new r.Name("errors"),this:new r.Name("this"),self:new r.Name("self"),scope:new r.Name("scope"),json:new r.Name("json"),jsonPos:new r.Name("jsonPos"),jsonLen:new r.Name("jsonLen"),jsonPart:new r.Name("jsonPart")};t.default=o},4143:function(e,t,n){"use strict";Object.defineProperty(t,"__esModule",{value:!0});const r=n(9826);class o extends Error{constructor(e,t,n){super(n||`can't resolve reference ${t} from id ${e}`),this.missingRef=r.resolveUrl(e,t),this.missingSchema=r.normalizeId(r.getFullPath(this.missingRef))}}t.default=o},9826:function(e,t,n){"use strict";Object.defineProperty(t,"__esModule",{value:!0}),t.getSchemaRefs=t.resolveUrl=t.normalizeId=t._getFullPath=t.getFullPath=t.inlineRef=void 0;const r=n(6124),o=n(4063),i=n(4029),a=n(540),s=new Set(["type","format","pattern","maxLength","minLength","maxProperties","minProperties","maxItems","minItems","maximum","minimum","uniqueItems","multipleOf","required","enum","const"]);t.inlineRef=function(e,t=!0){return"boolean"==typeof e||(!0===t?!c(e):!!t&&u(e)<=t)};const l=new Set(["$ref","$recursiveRef","$recursiveAnchor","$dynamicRef","$dynamicAnchor"]);function c(e){for(const t in e){if(l.has(t))return!0;const n=e[t];if(Array.isArray(n)&&n.some(c))return!0;if("object"==typeof n&&c(n))return!0}return!1}function u(e){let t=0;for(const n in e){if("$ref"===n)return 1/0;if(t++,!s.has(n)&&("object"==typeof e[n]&&r.eachItem(e[n],(e=>t+=u(e))),t===1/0))return 1/0}return t}function p(e="",t){return!1!==t&&(e=h(e)),d(a.parse(e))}function d(e){return a.serialize(e).split("#")[0]+"#"}t.getFullPath=p,t._getFullPath=d;const f=/#\/?$/;function h(e){return e?e.replace(f,""):""}t.normalizeId=h,t.resolveUrl=function(e,t){return t=h(t),a.resolve(e,t)};const m=/^[a-z_][-a-z0-9._]*$/i;t.getSchemaRefs=function(e){if("boolean"==typeof e)return{};const{schemaId:t}=this.opts,n=h(e[t]),r={"":n},s=p(n,!1),l={},c=new Set;return i(e,{allKeys:!0},((e,n,o,i)=>{if(void 0===i)return;const p=s+n;let f=r[i];function g(t){if(t=h(f?a.resolve(f,t):t),c.has(t))throw d(t);c.add(t);let n=this.refs[t];return"string"==typeof n&&(n=this.refs[n]),"object"==typeof n?u(e,n.schema,t):t!==h(p)&&("#"===t[0]?(u(e,l[t],t),l[t]=e):this.refs[t]=p),t}function y(e){if("string"==typeof e){if(!m.test(e))throw new Error(`invalid anchor "${e}"`);g.call(this,`#${e}`)}}"string"==typeof e[t]&&(f=g.call(this,e[t])),y.call(this,e.$anchor),y.call(this,e.$dynamicAnchor),r[n]=f})),l;function u(e,t,n){if(void 0!==t&&!o(e,t))throw d(n)}function d(e){return new Error(`reference "${e}" resolves to more than one schema`)}}},3664:function(e,t){"use strict";Object.defineProperty(t,"__esModule",{value:!0}),t.getRules=t.isJSONType=void 0;const n=new Set(["string","number","integer","boolean","null","object","array"]);t.isJSONType=function(e){return"string"==typeof e&&n.has(e)},t.getRules=function(){const e={number:{type:"number",rules:[]},string:{type:"string",rules:[]},array:{type:"array",rules:[]},object:{type:"object",rules:[]}};return{types:{...e,integer:!0,boolean:!0,null:!0},rules:[{rules:[]},e.number,e.string,e.array,e.object],post:{rules:[]},all:{},keywords:{}}}},6124:function(e,t,n){"use strict";Object.defineProperty(t,"__esModule",{value:!0}),t.checkStrictMode=t.getErrorPath=t.Type=t.useFunc=t.setEvaluated=t.evaluatedPropsToName=t.mergeEvaluated=t.eachItem=t.unescapeJsonPointer=t.escapeJsonPointer=t.escapeFragment=t.unescapeFragment=t.schemaRefOrVal=t.schemaHasRulesButRef=t.schemaHasRules=t.checkUnknownRules=t.alwaysValidSchema=t.toHash=void 0;const r=n(4475),o=n(4667);function i(e,t=e.schema){const{opts:n,self:r}=e;if(!n.strictSchema)return;if("boolean"==typeof t)return;const o=r.RULES.keywords;for(const n in t)o[n]||h(e,`unknown keyword: "${n}"`)}function a(e,t){if("boolean"==typeof e)return!e;for(const n in e)if(t[n])return!0;return!1}function s(e){return"number"==typeof e?`${e}`:e.replace(/~/g,"~0").replace(/\//g,"~1")}function l(e){return e.replace(/~1/g,"/").replace(/~0/g,"~")}function c({mergeNames:e,mergeToName:t,mergeValues:n,resultToName:o}){return(i,a,s,l)=>{const c=void 0===s?a:s instanceof r.Name?(a instanceof r.Name?e(i,a,s):t(i,a,s),s):a instanceof r.Name?(t(i,s,a),a):n(a,s);return l!==r.Name||c instanceof r.Name?c:o(i,c)}}function u(e,t){if(!0===t)return e.var("props",!0);const n=e.var("props",r._`{}`);return void 0!==t&&p(e,n,t),n}function p(e,t,n){Object.keys(n).forEach((n=>e.assign(r._`${t}${r.getProperty(n)}`,!0)))}t.toHash=function(e){const t={};for(const n of e)t[n]=!0;return t},t.alwaysValidSchema=function(e,t){return"boolean"==typeof t?t:0===Object.keys(t).length||(i(e,t),!a(t,e.self.RULES.all))},t.checkUnknownRules=i,t.schemaHasRules=a,t.schemaHasRulesButRef=function(e,t){if("boolean"==typeof e)return!e;for(const n in e)if("$ref"!==n&&t.all[n])return!0;return!1},t.schemaRefOrVal=function({topSchemaRef:e,schemaPath:t},n,o,i){if(!i){if("number"==typeof n||"boolean"==typeof n)return n;if("string"==typeof n)return r._`${n}`}return r._`${e}${t}${r.getProperty(o)}`},t.unescapeFragment=function(e){return l(decodeURIComponent(e))},t.escapeFragment=function(e){return encodeURIComponent(s(e))},t.escapeJsonPointer=s,t.unescapeJsonPointer=l,t.eachItem=function(e,t){if(Array.isArray(e))for(const n of e)t(n);else t(e)},t.mergeEvaluated={props:c({mergeNames:(e,t,n)=>e.if(r._`${n} !== true && ${t} !== undefined`,(()=>{e.if(r._`${t} === true`,(()=>e.assign(n,!0)),(()=>e.assign(n,r._`${n} || {}`).code(r._`Object.assign(${n}, ${t})`)))})),mergeToName:(e,t,n)=>e.if(r._`${n} !== true`,(()=>{!0===t?e.assign(n,!0):(e.assign(n,r._`${n} || {}`),p(e,n,t))})),mergeValues:(e,t)=>!0===e||{...e,...t},resultToName:u}),items:c({mergeNames:(e,t,n)=>e.if(r._`${n} !== true && ${t} !== undefined`,(()=>e.assign(n,r._`${t} === true ? true : ${n} > ${t} ? ${n} : ${t}`))),mergeToName:(e,t,n)=>e.if(r._`${n} !== true`,(()=>e.assign(n,!0===t||r._`${n} > ${t} ? ${n} : ${t}`))),mergeValues:(e,t)=>!0===e||Math.max(e,t),resultToName:(e,t)=>e.var("items",t)})},t.evaluatedPropsToName=u,t.setEvaluated=p;const d={};var f;function h(e,t,n=e.opts.strictSchema){if(n){if(t=`strict mode: ${t}`,!0===n)throw new Error(t);e.self.logger.warn(t)}}t.useFunc=function(e,t){return e.scopeValue("func",{ref:t,code:d[t.code]||(d[t.code]=new o._Code(t.code))})},function(e){e[e.Num=0]="Num",e[e.Str=1]="Str"}(f=t.Type||(t.Type={})),t.getErrorPath=function(e,t,n){if(e instanceof r.Name){const o=t===f.Num;return n?o?r._`"[" + ${e} + "]"`:r._`"['" + ${e} + "']"`:o?r._`"/" + ${e}`:r._`"/" + ${e}.replace(/~/g, "~0").replace(/\\//g, "~1")`}return n?r.getProperty(e).toString():"/"+s(e)},t.checkStrictMode=h},4566:function(e,t){"use strict";function n(e,t){return t.rules.some((t=>r(e,t)))}function r(e,t){var n;return void 0!==e[t.keyword]||(null===(n=t.definition.implements)||void 0===n?void 0:n.some((t=>void 0!==e[t])))}Object.defineProperty(t,"__esModule",{value:!0}),t.shouldUseRule=t.shouldUseGroup=t.schemaHasRulesForType=void 0,t.schemaHasRulesForType=function({schema:e,self:t},r){const o=t.RULES.types[r];return o&&!0!==o&&n(e,o)},t.shouldUseGroup=n,t.shouldUseRule=r},7627:function(e,t,n){"use strict";Object.defineProperty(t,"__esModule",{value:!0}),t.boolOrEmptySchema=t.topBoolOrEmptySchema=void 0;const r=n(1885),o=n(4475),i=n(5018),a={message:"boolean schema is false"};function s(e,t){const{gen:n,data:o}=e,i={gen:n,keyword:"false schema",data:o,schema:!1,schemaCode:!1,schemaValue:!1,params:{},it:e};r.reportError(i,a,void 0,t)}t.topBoolOrEmptySchema=function(e){const{gen:t,schema:n,validateName:r}=e;!1===n?s(e,!1):"object"==typeof n&&!0===n.$async?t.return(i.default.data):(t.assign(o._`${r}.errors`,null),t.return(!0))},t.boolOrEmptySchema=function(e,t){const{gen:n,schema:r}=e;!1===r?(n.var(t,!1),s(e)):n.var(t,!0)}},7927:function(e,t,n){"use strict";Object.defineProperty(t,"__esModule",{value:!0}),t.reportTypeError=t.checkDataTypes=t.checkDataType=t.coerceAndCheckDataType=t.getJSONTypes=t.getSchemaTypes=t.DataType=void 0;const r=n(3664),o=n(4566),i=n(1885),a=n(4475),s=n(6124);var l;function c(e){const t=Array.isArray(e)?e:e?[e]:[];if(t.every(r.isJSONType))return t;throw new Error("type must be JSONType or JSONType[]: "+t.join(","))}!function(e){e[e.Correct=0]="Correct",e[e.Wrong=1]="Wrong"}(l=t.DataType||(t.DataType={})),t.getSchemaTypes=function(e){const t=c(e.type);if(t.includes("null")){if(!1===e.nullable)throw new Error("type: null contradicts nullable: false")}else{if(!t.length&&void 0!==e.nullable)throw new Error('"nullable" cannot be used without "type"');!0===e.nullable&&t.push("null")}return t},t.getJSONTypes=c,t.coerceAndCheckDataType=function(e,t){const{gen:n,data:r,opts:i}=e,s=function(e,t){return t?e.filter((e=>u.has(e)||"array"===t&&"array"===e)):[]}(t,i.coerceTypes),c=t.length>0&&!(0===s.length&&1===t.length&&o.schemaHasRulesForType(e,t[0]));if(c){const o=d(t,r,i.strictNumbers,l.Wrong);n.if(o,(()=>{s.length?function(e,t,n){const{gen:r,data:o,opts:i}=e,s=r.let("dataType",a._`typeof ${o}`),l=r.let("coerced",a._`undefined`);"array"===i.coerceTypes&&r.if(a._`${s} == 'object' && Array.isArray(${o}) && ${o}.length == 1`,(()=>r.assign(o,a._`${o}[0]`).assign(s,a._`typeof ${o}`).if(d(t,o,i.strictNumbers),(()=>r.assign(l,o))))),r.if(a._`${l} !== undefined`);for(const e of n)(u.has(e)||"array"===e&&"array"===i.coerceTypes)&&c(e);function c(e){switch(e){case"string":return void r.elseIf(a._`${s} == "number" || ${s} == "boolean"`).assign(l,a._`"" + ${o}`).elseIf(a._`${o} === null`).assign(l,a._`""`);case"number":return void r.elseIf(a._`${s} == "boolean" || ${o} === null
@@ -3226,7 +3227,7 @@ <h3 id="3-learn-more">3. Learn more</h3>
 </div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT sc-gSYDnn jGQAHm cEDeHn eQXlzZ" kind="field" title="tracking_events"><span class="sc-iemWCZ dDldOx"></span><button aria-label="expand properties"><span class="property-name">tracking_events</span><svg class="sc-dIsUp hGHhhO" version="1.1" viewBox="0 0 24 24" x="0" xmlns="http://www.w3.org/2000/svg" y="0" aria-hidden="true"><polygon points="17.3 8.3 12 13.6 6.7 8.3 5.3 9.7 12 16.4 18.7 9.7 "></polygon></svg></button></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa">Array of </span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">objects or null</span><span class="sc-laZMeE sc-eJocfa jWaWWE bArHDh"> (<!-- -->tracking_event_normal<!-- -->) </span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>An array of tracking_event objects ordered by ascending <code>time</code>. Will not be populated for postcards created in test mode.</p>
 </div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="campaign_id"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">campaign_id</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">string or null</span><span class="sc-laZMeE sc-eJocfa jWaWWE bArHDh"> (<!-- -->campaign_id<!-- -->) </span><span class="sc-laZMeE sc-gGLxEB jWaWWE bZSdhu">^cmp_[a-zA-Z0-9]+$</span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>Denotes resources created by the provided campaign id, prefixed with <code>cmp_</code>.</p>
 </div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="use_type"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">use_type</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">string or null</span><span class="sc-laZMeE sc-eJocfa jWaWWE bArHDh"> (<!-- -->psc_use_type<!-- -->) </span></div><div><span class="sc-laZMeE jWaWWE"> <!-- -->Enum<!-- -->:</span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;marketing&quot;</span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;operational&quot;</span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">null</span> </div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>The use type for each mailpiece. Can be one of marketing, operational, or null. Null use_type is only allowed if an account default use_type is selected in Account Settings. For more information on use_type, see our  <a href="https://help.lob.com/print-and-mail/building-a-mail-strategy/managing-mail-settings/declaring-mail-use-type">Help Center article</a>.</p>
-</div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="fsc"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">fsc</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">boolean</span></div><div><span class="sc-laZMeE jWaWWE"> <!-- -->Default:<!-- --> </span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">false</span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>This is in beta. Contact <a href="mailto:&#x73;&#x75;&#x70;&#x70;&#x6f;&#x72;&#116;&#x40;&#108;&#x6f;&#x62;&#x2e;&#x63;&#111;&#x6d;">&#x73;&#x75;&#x70;&#x70;&#x6f;&#x72;&#116;&#x40;&#108;&#x6f;&#x62;&#x2e;&#x63;&#111;&#x6d;</a> or your account contact to learn more. Not available for <code>4x6</code> or <code>A5</code> postcard sizes.</p>
+</div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="fsc"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">fsc</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">boolean</span></div><div><span class="sc-laZMeE jWaWWE"> <!-- -->Default:<!-- --> </span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">false</span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>This is in beta. Contact <a href="mailto:&#115;&#x75;&#112;&#x70;&#x6f;&#x72;&#x74;&#x40;&#108;&#111;&#x62;&#46;&#99;&#x6f;&#x6d;">&#115;&#x75;&#112;&#x70;&#x6f;&#x72;&#x74;&#x40;&#108;&#111;&#x62;&#46;&#99;&#x6f;&#x6d;</a> or your account contact to learn more. Not available for <code>4x6</code> or <code>A5</code> postcard sizes.</p>
 </div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="status"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">status</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">string</span><span class="sc-laZMeE sc-eJocfa jWaWWE bArHDh"> (<!-- -->status<!-- -->) </span></div><div><span class="sc-laZMeE jWaWWE"> <!-- -->Enum<!-- -->:</span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;processed&quot;</span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;rendered&quot;</span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;failed&quot;</span> </div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>A string describing the PDF render status:</p>
 <ul>
 <li><code>processed</code> - the rendering process is currently in progress.</li>
@@ -3321,7 +3322,7 @@ <h3 id="3-learn-more">3. Learn more</h3>
 </div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT sc-gSYDnn jGQAHm cEDeHn eQXlzZ" kind="field" title="from"><span class="sc-iemWCZ dDldOx"></span><button aria-label="expand properties"><span class="property-name">from</span><svg class="sc-dIsUp hGHhhO" version="1.1" viewBox="0 0 24 24" x="0" xmlns="http://www.w3.org/2000/svg" y="0" aria-hidden="true"><polygon points="17.3 8.3 12 13.6 6.7 8.3 5.3 9.7 12 16.4 18.7 9.7 "></polygon></svg></button></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">adr_id (string) or (address_editable_us (address obj with `name` defined (object) or address obj with `company` defined (object)))</span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p><em>Required</em> if <code>to</code> address is international. Must either be an address ID or an inline object with correct address parameters. Must either be an address ID or an inline object with correct address parameters. All addresses will be standardized into uppercase without being modified by verification.</p>
 </div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="billing_group_id"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">billing_group_id</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">string</span><span class="sc-laZMeE sc-eJocfa jWaWWE bArHDh"> (<!-- -->billing_group_id<!-- -->) </span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>An optional string with the billing group ID to tag your usage with. Is used for billing purposes. Requires special activation to use. See <a href="#tag/Billing-Groups">Billing Group API</a> for more information.</p>
 </div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT sc-gSYDnn jGQAHm cEDeHn eQXlzZ" kind="field" title="qr_code"><span class="sc-iemWCZ dDldOx"></span><button aria-label="expand properties"><span class="property-name">qr_code</span><svg class="sc-dIsUp hGHhhO" version="1.1" viewBox="0 0 24 24" x="0" xmlns="http://www.w3.org/2000/svg" y="0" aria-hidden="true"><polygon points="17.3 8.3 12 13.6 6.7 8.3 5.3 9.7 12 16.4 18.7 9.7 "></polygon></svg></button></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">object</span><span class="sc-laZMeE sc-eJocfa jWaWWE bArHDh"> (<!-- -->qr_code<!-- -->) </span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>Customize and place a QR code on the creative at the required position.</p>
-</div></div></div></td></tr><tr class="last "><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="fsc"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">fsc</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">boolean</span></div><div><span class="sc-laZMeE jWaWWE"> <!-- -->Default:<!-- --> </span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">false</span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>This is in beta. Contact <a href="mailto:&#115;&#x75;&#x70;&#112;&#111;&#114;&#x74;&#64;&#108;&#x6f;&#x62;&#x2e;&#99;&#111;&#109;">&#115;&#x75;&#x70;&#112;&#111;&#114;&#x74;&#64;&#108;&#x6f;&#x62;&#x2e;&#99;&#111;&#109;</a> or your account contact to learn more. Not available for <code>4x6</code> or <code>A5</code> postcard sizes.</p>
+</div></div></div></td></tr><tr class="last "><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="fsc"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">fsc</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">boolean</span></div><div><span class="sc-laZMeE jWaWWE"> <!-- -->Default:<!-- --> </span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">false</span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>This is in beta. Contact <a href="mailto:&#115;&#x75;&#112;&#112;&#111;&#114;&#116;&#64;&#108;&#x6f;&#98;&#x2e;&#99;&#111;&#109;">&#115;&#x75;&#112;&#112;&#111;&#114;&#116;&#64;&#108;&#x6f;&#98;&#x2e;&#99;&#111;&#109;</a> or your account contact to learn more. Not available for <code>4x6</code> or <code>A5</code> postcard sizes.</p>
 </div></div></div></td></tr></tbody></table><div><h3 class="sc-fIxmyt DvFer">Responses</h3><div><button class="sc-htmcrh lbYftx" aria-expanded="true"><svg class="sc-dIsUp kwUPXW" version="1.1" viewBox="0 0 24 24" x="0" xmlns="http://www.w3.org/2000/svg" y="0" aria-hidden="true"><polygon points="17.3 8.3 12 13.6 6.7 8.3 5.3 9.7 12 16.4 18.7 9.7 "></polygon></svg><strong class="sc-fWWYYk cMoEZ">200<!-- --> </strong><span class="sc-jcwpoC IMGvd"><p>Returns a postcard object</p>
 </span></button><div class="sc-cbeScs jDggOG"><table class="sc-hHEiqL gwGvED"><caption class="sc-hkeOVe sc-gVFcvn gNUjCC hahIgV"> Response Headers </caption><tbody><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="ratelimit-limit"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">ratelimit-limit</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">integer</span></div> <div><span class="sc-laZMeE jWaWWE"> <!-- -->Example:<!-- --> </span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">150</span></div><div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>The rate limit for a given endpoint.</p>
 </div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="ratelimit-remaining"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">ratelimit-remaining</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">integer</span></div> <div><span class="sc-laZMeE jWaWWE"> <!-- -->Example:<!-- --> </span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">100</span></div><div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>The number of requests remaining in the current window.</p>
@@ -3351,7 +3352,7 @@ <h3 id="3-learn-more">3. Learn more</h3>
 </div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT sc-gSYDnn jGQAHm cEDeHn eQXlzZ" kind="field" title="tracking_events"><span class="sc-iemWCZ dDldOx"></span><button aria-label="expand properties"><span class="property-name">tracking_events</span><svg class="sc-dIsUp hGHhhO" version="1.1" viewBox="0 0 24 24" x="0" xmlns="http://www.w3.org/2000/svg" y="0" aria-hidden="true"><polygon points="17.3 8.3 12 13.6 6.7 8.3 5.3 9.7 12 16.4 18.7 9.7 "></polygon></svg></button></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa">Array of </span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">objects or null</span><span class="sc-laZMeE sc-eJocfa jWaWWE bArHDh"> (<!-- -->tracking_event_normal<!-- -->) </span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>An array of tracking_event objects ordered by ascending <code>time</code>. Will not be populated for postcards created in test mode.</p>
 </div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="campaign_id"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">campaign_id</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">string or null</span><span class="sc-laZMeE sc-eJocfa jWaWWE bArHDh"> (<!-- -->campaign_id<!-- -->) </span><span class="sc-laZMeE sc-gGLxEB jWaWWE bZSdhu">^cmp_[a-zA-Z0-9]+$</span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>Denotes resources created by the provided campaign id, prefixed with <code>cmp_</code>.</p>
 </div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="use_type"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">use_type</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">string or null</span><span class="sc-laZMeE sc-eJocfa jWaWWE bArHDh"> (<!-- -->psc_use_type<!-- -->) </span></div><div><span class="sc-laZMeE jWaWWE"> <!-- -->Enum<!-- -->:</span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;marketing&quot;</span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;operational&quot;</span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">null</span> </div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>The use type for each mailpiece. Can be one of marketing, operational, or null. Null use_type is only allowed if an account default use_type is selected in Account Settings. For more information on use_type, see our  <a href="https://help.lob.com/print-and-mail/building-a-mail-strategy/managing-mail-settings/declaring-mail-use-type">Help Center article</a>.</p>
-</div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="fsc"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">fsc</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">boolean</span></div><div><span class="sc-laZMeE jWaWWE"> <!-- -->Default:<!-- --> </span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">false</span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>This is in beta. Contact <a href="mailto:&#115;&#x75;&#112;&#x70;&#111;&#x72;&#116;&#x40;&#108;&#x6f;&#x62;&#46;&#x63;&#111;&#109;">&#115;&#x75;&#112;&#x70;&#111;&#x72;&#116;&#x40;&#108;&#x6f;&#x62;&#46;&#x63;&#111;&#109;</a> or your account contact to learn more. Not available for <code>4x6</code> or <code>A5</code> postcard sizes.</p>
+</div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="fsc"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">fsc</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">boolean</span></div><div><span class="sc-laZMeE jWaWWE"> <!-- -->Default:<!-- --> </span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">false</span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>This is in beta. Contact <a href="mailto:&#115;&#117;&#112;&#x70;&#111;&#x72;&#116;&#x40;&#108;&#111;&#98;&#46;&#x63;&#x6f;&#109;">&#115;&#117;&#112;&#x70;&#111;&#x72;&#116;&#x40;&#108;&#111;&#98;&#46;&#x63;&#x6f;&#109;</a> or your account contact to learn more. Not available for <code>4x6</code> or <code>A5</code> postcard sizes.</p>
 </div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="status"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">status</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">string</span><span class="sc-laZMeE sc-eJocfa jWaWWE bArHDh"> (<!-- -->status<!-- -->) </span></div><div><span class="sc-laZMeE jWaWWE"> <!-- -->Enum<!-- -->:</span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;processed&quot;</span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;rendered&quot;</span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;failed&quot;</span> </div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>A string describing the PDF render status:</p>
 <ul>
 <li><code>processed</code> - the rendering process is currently in progress.</li>
@@ -3382,7 +3383,7 @@ <h3 id="3-learn-more">3. Learn more</h3>
 </ul>
 </div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="merge_variables"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">merge_variables</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">object or null</span><span class="sc-laZMeE sc-eJocfa jWaWWE bArHDh"> (<!-- -->merge_variables<!-- -->) </span><span> <span class="sc-laZMeE sc-FRrlG jWaWWE ldkmFV"> <!-- -->&lt;= 25000 characters<!-- --> </span></span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>You can input a merge variable payload object to your template to render dynamic content. For example, if you have a template like: <code>{{variable_name}}</code>, pass in <code>{&quot;variable_name&quot;: &quot;Harry&quot;}</code> to render <code>Harry</code>. <code>merge_variables</code> must be an object. Any type of value is accepted as long as the object is valid JSON; you can use <code>strings</code>, <code>numbers</code>, <code>booleans</code>, <code>arrays</code>, <code>objects</code>, or <code>null</code>. The max length of the object is 25,000 characters. If you call <code>JSON.stringify</code> on your object, it can be no longer than 25,000 characters. Your variable names cannot contain any whitespace or any of the following special characters: <code>!</code>, <code>&quot;</code>, <code>#</code>, <code>%</code>, <code>&amp;</code>, <code>&#39;</code>, <code>(</code>, <code>)</code>, <code>*</code>, <code>+</code>, <code>,</code>, <code>/</code>, <code>;</code>, <code>&lt;</code>, <code>=</code>, <code>&gt;</code>, <code>@</code>, <code>[</code>, <code>\</code>, <code>]</code>, <code>^</code>, <code>`</code>, <code>{</code>, <code>|</code>, <code>}</code>, <code>~</code>. More instructions can be found in <a href="https://help.lob.com/print-and-mail/designing-mail-creatives/dynamic-personalization#using-html-and-merge-variables-10" target="_blank">our guide to using html and merge variables</a>. Depending on your <a href="https://dashboard.lob.com/#/settings/account" target="_blank">Merge Variable strictness</a> setting, if you define variables in your HTML but do not pass them here, you will either receive an error or the variable will render as an empty string.</p>
 </div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT sc-gSYDnn jGQAHm cEDeHn eQXlzZ" kind="field" title="send_date"><span class="sc-iemWCZ dDldOx"></span><button aria-label="expand properties"><span class="property-name">send_date</span><svg class="sc-dIsUp hGHhhO" version="1.1" viewBox="0 0 24 24" x="0" xmlns="http://www.w3.org/2000/svg" y="0" aria-hidden="true"><polygon points="17.3 8.3 12 13.6 6.7 8.3 5.3 9.7 12 16.4 18.7 9.7 "></polygon></svg></button></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">string or string</span><span class="sc-laZMeE sc-eJocfa jWaWWE bArHDh"> (<!-- -->send_date<!-- -->) </span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>A timestamp in ISO 8601 format which specifies a date after the current time and up to 180 days in the future to send the letter off for production. Setting a send date overrides the default <a href="#section/Cancellation-Windows">cancellation window</a> applied to the mailpiece. Until the <code>send_date</code> has passed, the mailpiece can be canceled. If a date in the format <code>2017-11-01</code> is passed, it will evaluate to midnight UTC of that date (<code>2017-11-01T00:00:00.000Z</code>). If a datetime is passed, that exact time will be used. A <code>send_date</code> passed with no time zone will default to UTC, while a <code>send_date</code> passed with a time zone will be converted to UTC.</p>
-</div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="size"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">size</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">string</span><span class="sc-laZMeE sc-eJocfa jWaWWE bArHDh"> (<!-- -->self_mailer_size<!-- -->) </span></div><div><span class="sc-laZMeE jWaWWE"> <!-- -->Default:<!-- --> </span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;6x18_bifold&quot;</span></div><div><span class="sc-laZMeE jWaWWE"> <!-- -->Enum<!-- -->:</span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;6x18_bifold&quot;</span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;11x9_bifold&quot;</span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;12x9_bifold&quot;</span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;17.75x9_trifold&quot;</span> </div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>Specifies the size of the self mailer. The <code>17.75x9_trifold</code> size is in beta. Contact <a href="mailto:&#115;&#x75;&#112;&#112;&#111;&#x72;&#116;&#64;&#x6c;&#x6f;&#x62;&#46;&#99;&#111;&#109;">&#115;&#x75;&#112;&#112;&#111;&#x72;&#116;&#64;&#x6c;&#x6f;&#x62;&#46;&#99;&#111;&#109;</a> or your account contact to learn more.</p>
+</div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="size"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">size</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">string</span><span class="sc-laZMeE sc-eJocfa jWaWWE bArHDh"> (<!-- -->self_mailer_size<!-- -->) </span></div><div><span class="sc-laZMeE jWaWWE"> <!-- -->Default:<!-- --> </span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;6x18_bifold&quot;</span></div><div><span class="sc-laZMeE jWaWWE"> <!-- -->Enum<!-- -->:</span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;6x18_bifold&quot;</span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;11x9_bifold&quot;</span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;12x9_bifold&quot;</span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;17.75x9_trifold&quot;</span> </div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>Specifies the size of the self mailer. The <code>17.75x9_trifold</code> size is in beta. Contact <a href="mailto:&#115;&#x75;&#x70;&#112;&#111;&#x72;&#x74;&#64;&#x6c;&#111;&#98;&#x2e;&#x63;&#111;&#109;">&#115;&#x75;&#x70;&#112;&#111;&#x72;&#x74;&#64;&#x6c;&#111;&#98;&#x2e;&#x63;&#111;&#109;</a> or your account contact to learn more.</p>
 </div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT sc-gSYDnn jGQAHm cEDeHn eQXlzZ" kind="field" title="thumbnails"><span class="sc-iemWCZ dDldOx"></span><button aria-label="expand properties"><span class="property-name">thumbnails</span><svg class="sc-dIsUp hGHhhO" version="1.1" viewBox="0 0 24 24" x="0" xmlns="http://www.w3.org/2000/svg" y="0" aria-hidden="true"><polygon points="17.3 8.3 12 13.6 6.7 8.3 5.3 9.7 12 16.4 18.7 9.7 "></polygon></svg></button></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa">Array of </span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">objects</span><span class="sc-laZMeE sc-eJocfa jWaWWE bArHDh"> (<!-- -->thumbnail<!-- -->) </span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"></div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="expected_delivery_date"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">expected_delivery_date</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">string</span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa"> <!-- -->&lt;<!-- -->date<!-- -->&gt;<!-- --> </span><span class="sc-laZMeE sc-eJocfa jWaWWE bArHDh"> (<!-- -->expected_delivery_date<!-- -->) </span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>A date in YYYY-MM-DD format of the mailpiece&#39;s expected delivery date based on its <code>send_date</code>.</p>
 </div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="date_created"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">date_created</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">string</span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa"> <!-- -->&lt;<!-- -->date-time<!-- -->&gt;<!-- --> </span><span class="sc-laZMeE sc-eJocfa jWaWWE bArHDh"> (<!-- -->date_created<!-- -->) </span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>A timestamp in ISO 8601 format of the date the resource was created.</p>
 </div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="date_modified"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">date_modified</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">string</span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa"> <!-- -->&lt;<!-- -->date-time<!-- -->&gt;<!-- --> </span><span class="sc-laZMeE sc-eJocfa jWaWWE bArHDh"> (<!-- -->date_modified<!-- -->) </span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>A timestamp in ISO 8601 format of the date the resource was last modified.</p>
@@ -3393,7 +3394,7 @@ <h3 id="3-learn-more">3. Learn more</h3>
 </div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="inside_template_version_id"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">inside_template_version_id</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">string or null</span><span class="sc-laZMeE sc-gGLxEB jWaWWE bZSdhu">^vrsn_[a-zA-Z0-9]+$</span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>Unique identifier prefixed with <code>vrsn_</code>.</p>
 </div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="object"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">object</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">string</span></div><div><span class="sc-laZMeE jWaWWE"> <!-- -->Default:<!-- --> </span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;self_mailer&quot;</span></div><div><span class="sc-laZMeE jWaWWE"> <!-- -->Value<!-- -->:</span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;self_mailer&quot;</span> </div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>Value is resource type.</p>
 </div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT sc-gSYDnn jGQAHm cEDeHn eQXlzZ" kind="field" title="tracking_events"><span class="sc-iemWCZ dDldOx"></span><button aria-label="expand properties"><span class="property-name">tracking_events</span><svg class="sc-dIsUp hGHhhO" version="1.1" viewBox="0 0 24 24" x="0" xmlns="http://www.w3.org/2000/svg" y="0" aria-hidden="true"><polygon points="17.3 8.3 12 13.6 6.7 8.3 5.3 9.7 12 16.4 18.7 9.7 "></polygon></svg></button></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa">Array of </span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">objects</span><span class="sc-laZMeE sc-eJocfa jWaWWE bArHDh"> (<!-- -->tracking_event_certified<!-- -->) </span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>An array of certified tracking events ordered by ascending <code>time</code>. Not populated in test mode.</p>
-</div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="fsc"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">fsc</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">boolean</span></div><div><span class="sc-laZMeE jWaWWE"> <!-- -->Default:<!-- --> </span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">false</span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>This is in beta. Contact <a href="mailto:&#115;&#117;&#112;&#112;&#111;&#x72;&#x74;&#64;&#x6c;&#x6f;&#x62;&#46;&#x63;&#111;&#x6d;">&#115;&#117;&#112;&#112;&#111;&#x72;&#x74;&#64;&#x6c;&#x6f;&#x62;&#46;&#x63;&#111;&#x6d;</a> or your account contact to learn more. Not available for <code>11x9_bifold</code> self-mailer size.</p>
+</div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="fsc"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">fsc</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">boolean</span></div><div><span class="sc-laZMeE jWaWWE"> <!-- -->Default:<!-- --> </span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">false</span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>This is in beta. Contact <a href="mailto:&#x73;&#117;&#x70;&#x70;&#111;&#x72;&#x74;&#x40;&#x6c;&#111;&#x62;&#x2e;&#99;&#x6f;&#x6d;">&#x73;&#117;&#x70;&#x70;&#111;&#x72;&#x74;&#x40;&#x6c;&#111;&#x62;&#x2e;&#99;&#x6f;&#x6d;</a> or your account contact to learn more. Not available for <code>11x9_bifold</code> self-mailer size.</p>
 </div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="status"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">status</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">string</span><span class="sc-laZMeE sc-eJocfa jWaWWE bArHDh"> (<!-- -->status<!-- -->) </span></div><div><span class="sc-laZMeE jWaWWE"> <!-- -->Enum<!-- -->:</span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;processed&quot;</span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;rendered&quot;</span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;failed&quot;</span> </div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>A string describing the PDF render status:</p>
 <ul>
 <li><code>processed</code> - the rendering process is currently in progress.</li>
@@ -3484,11 +3485,11 @@ <h3 id="3-learn-more">3. Learn more</h3>
 </ul>
 </div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="merge_variables"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">merge_variables</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">object or null</span><span class="sc-laZMeE sc-eJocfa jWaWWE bArHDh"> (<!-- -->merge_variables<!-- -->) </span><span> <span class="sc-laZMeE sc-FRrlG jWaWWE ldkmFV"> <!-- -->&lt;= 25000 characters<!-- --> </span></span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>You can input a merge variable payload object to your template to render dynamic content. For example, if you have a template like: <code>{{variable_name}}</code>, pass in <code>{&quot;variable_name&quot;: &quot;Harry&quot;}</code> to render <code>Harry</code>. <code>merge_variables</code> must be an object. Any type of value is accepted as long as the object is valid JSON; you can use <code>strings</code>, <code>numbers</code>, <code>booleans</code>, <code>arrays</code>, <code>objects</code>, or <code>null</code>. The max length of the object is 25,000 characters. If you call <code>JSON.stringify</code> on your object, it can be no longer than 25,000 characters. Your variable names cannot contain any whitespace or any of the following special characters: <code>!</code>, <code>&quot;</code>, <code>#</code>, <code>%</code>, <code>&amp;</code>, <code>&#39;</code>, <code>(</code>, <code>)</code>, <code>*</code>, <code>+</code>, <code>,</code>, <code>/</code>, <code>;</code>, <code>&lt;</code>, <code>=</code>, <code>&gt;</code>, <code>@</code>, <code>[</code>, <code>\</code>, <code>]</code>, <code>^</code>, <code>`</code>, <code>{</code>, <code>|</code>, <code>}</code>, <code>~</code>. More instructions can be found in <a href="https://help.lob.com/print-and-mail/designing-mail-creatives/dynamic-personalization#using-html-and-merge-variables-10" target="_blank">our guide to using html and merge variables</a>. Depending on your <a href="https://dashboard.lob.com/#/settings/account" target="_blank">Merge Variable strictness</a> setting, if you define variables in your HTML but do not pass them here, you will either receive an error or the variable will render as an empty string.</p>
 </div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT sc-gSYDnn jGQAHm cEDeHn eQXlzZ" kind="field" title="send_date"><span class="sc-iemWCZ dDldOx"></span><button aria-label="expand properties"><span class="property-name">send_date</span><svg class="sc-dIsUp hGHhhO" version="1.1" viewBox="0 0 24 24" x="0" xmlns="http://www.w3.org/2000/svg" y="0" aria-hidden="true"><polygon points="17.3 8.3 12 13.6 6.7 8.3 5.3 9.7 12 16.4 18.7 9.7 "></polygon></svg></button></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">string or string</span><span class="sc-laZMeE sc-eJocfa jWaWWE bArHDh"> (<!-- -->send_date<!-- -->) </span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>A timestamp in ISO 8601 format which specifies a date after the current time and up to 180 days in the future to send the letter off for production. Setting a send date overrides the default <a href="#section/Cancellation-Windows">cancellation window</a> applied to the mailpiece. Until the <code>send_date</code> has passed, the mailpiece can be canceled. If a date in the format <code>2017-11-01</code> is passed, it will evaluate to midnight UTC of that date (<code>2017-11-01T00:00:00.000Z</code>). If a datetime is passed, that exact time will be used. A <code>send_date</code> passed with no time zone will default to UTC, while a <code>send_date</code> passed with a time zone will be converted to UTC.</p>
-</div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="size"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">size</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">string</span><span class="sc-laZMeE sc-eJocfa jWaWWE bArHDh"> (<!-- -->self_mailer_size<!-- -->) </span></div><div><span class="sc-laZMeE jWaWWE"> <!-- -->Default:<!-- --> </span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;6x18_bifold&quot;</span></div><div><span class="sc-laZMeE jWaWWE"> <!-- -->Enum<!-- -->:</span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;6x18_bifold&quot;</span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;11x9_bifold&quot;</span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;12x9_bifold&quot;</span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;17.75x9_trifold&quot;</span> </div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>Specifies the size of the self mailer. The <code>17.75x9_trifold</code> size is in beta. Contact <a href="mailto:&#115;&#x75;&#x70;&#112;&#111;&#114;&#116;&#64;&#108;&#111;&#98;&#46;&#99;&#111;&#x6d;">&#115;&#x75;&#x70;&#112;&#111;&#114;&#116;&#64;&#108;&#111;&#98;&#46;&#99;&#111;&#x6d;</a> or your account contact to learn more.</p>
+</div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="size"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">size</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">string</span><span class="sc-laZMeE sc-eJocfa jWaWWE bArHDh"> (<!-- -->self_mailer_size<!-- -->) </span></div><div><span class="sc-laZMeE jWaWWE"> <!-- -->Default:<!-- --> </span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;6x18_bifold&quot;</span></div><div><span class="sc-laZMeE jWaWWE"> <!-- -->Enum<!-- -->:</span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;6x18_bifold&quot;</span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;11x9_bifold&quot;</span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;12x9_bifold&quot;</span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;17.75x9_trifold&quot;</span> </div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>Specifies the size of the self mailer. The <code>17.75x9_trifold</code> size is in beta. Contact <a href="mailto:&#115;&#117;&#112;&#x70;&#111;&#114;&#116;&#x40;&#x6c;&#111;&#98;&#46;&#99;&#x6f;&#x6d;">&#115;&#117;&#112;&#x70;&#111;&#114;&#116;&#x40;&#x6c;&#111;&#98;&#46;&#99;&#x6f;&#x6d;</a> or your account contact to learn more.</p>
 </div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT sc-gSYDnn jGQAHm cEDeHn eQXlzZ" kind="field" title="from"><span class="sc-iemWCZ dDldOx"></span><button aria-label="expand properties"><span class="property-name">from</span><svg class="sc-dIsUp hGHhhO" version="1.1" viewBox="0 0 24 24" x="0" xmlns="http://www.w3.org/2000/svg" y="0" aria-hidden="true"><polygon points="17.3 8.3 12 13.6 6.7 8.3 5.3 9.7 12 16.4 18.7 9.7 "></polygon></svg></button></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">adr_id (string) or (address_editable_us (address obj with `name` defined (object) or address obj with `company` defined (object)))</span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p><em>Required</em> if <code>to</code> address is international. Must either be an address ID or an inline object with correct address parameters. Must either be an address ID or an inline object with correct address parameters. All addresses will be standardized into uppercase without being modified by verification.</p>
 </div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="billing_group_id"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">billing_group_id</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">string</span><span class="sc-laZMeE sc-eJocfa jWaWWE bArHDh"> (<!-- -->billing_group_id<!-- -->) </span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>An optional string with the billing group ID to tag your usage with. Is used for billing purposes. Requires special activation to use. See <a href="#tag/Billing-Groups">Billing Group API</a> for more information.</p>
 </div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT sc-gSYDnn jGQAHm cEDeHn eQXlzZ" kind="field" title="qr_code"><span class="sc-iemWCZ dDldOx"></span><button aria-label="expand properties"><span class="property-name">qr_code</span><svg class="sc-dIsUp hGHhhO" version="1.1" viewBox="0 0 24 24" x="0" xmlns="http://www.w3.org/2000/svg" y="0" aria-hidden="true"><polygon points="17.3 8.3 12 13.6 6.7 8.3 5.3 9.7 12 16.4 18.7 9.7 "></polygon></svg></button></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">object</span><span class="sc-laZMeE sc-eJocfa jWaWWE bArHDh"> (<!-- -->qr_code<!-- -->) </span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>Customize and place a QR code on the creative at the required position.</p>
-</div></div></div></td></tr><tr class="last "><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="fsc"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">fsc</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">boolean</span></div><div><span class="sc-laZMeE jWaWWE"> <!-- -->Default:<!-- --> </span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">false</span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>This is in beta. Contact <a href="mailto:&#115;&#117;&#112;&#112;&#111;&#x72;&#116;&#64;&#108;&#x6f;&#98;&#x2e;&#99;&#x6f;&#x6d;">&#115;&#117;&#112;&#112;&#111;&#x72;&#116;&#64;&#108;&#x6f;&#98;&#x2e;&#99;&#x6f;&#x6d;</a> or your account contact to learn more. Not available for <code>11x9_bifold</code> self-mailer size.</p>
+</div></div></div></td></tr><tr class="last "><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="fsc"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">fsc</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">boolean</span></div><div><span class="sc-laZMeE jWaWWE"> <!-- -->Default:<!-- --> </span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">false</span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>This is in beta. Contact <a href="mailto:&#x73;&#x75;&#112;&#112;&#111;&#114;&#x74;&#x40;&#x6c;&#111;&#98;&#46;&#x63;&#111;&#109;">&#x73;&#x75;&#112;&#112;&#111;&#114;&#x74;&#x40;&#x6c;&#111;&#98;&#46;&#x63;&#111;&#109;</a> or your account contact to learn more. Not available for <code>11x9_bifold</code> self-mailer size.</p>
 </div></div></div></td></tr></tbody></table><div><h3 class="sc-fIxmyt DvFer">Responses</h3><div><button class="sc-htmcrh lbYftx" aria-expanded="true"><svg class="sc-dIsUp kwUPXW" version="1.1" viewBox="0 0 24 24" x="0" xmlns="http://www.w3.org/2000/svg" y="0" aria-hidden="true"><polygon points="17.3 8.3 12 13.6 6.7 8.3 5.3 9.7 12 16.4 18.7 9.7 "></polygon></svg><strong class="sc-fWWYYk cMoEZ">200<!-- --> </strong><span class="sc-jcwpoC IMGvd"><p>Returns a self_mailer object</p>
 </span></button><div class="sc-cbeScs jDggOG"><table class="sc-hHEiqL gwGvED"><caption class="sc-hkeOVe sc-gVFcvn gNUjCC hahIgV"> Response Headers </caption><tbody><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="ratelimit-limit"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">ratelimit-limit</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">integer</span></div> <div><span class="sc-laZMeE jWaWWE"> <!-- -->Example:<!-- --> </span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">150</span></div><div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>The rate limit for a given endpoint.</p>
 </div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="ratelimit-remaining"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">ratelimit-remaining</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">integer</span></div> <div><span class="sc-laZMeE jWaWWE"> <!-- -->Example:<!-- --> </span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">100</span></div><div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>The number of requests remaining in the current window.</p>
@@ -3507,7 +3508,7 @@ <h3 id="3-learn-more">3. Learn more</h3>
 </ul>
 </div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="merge_variables"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">merge_variables</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">object or null</span><span class="sc-laZMeE sc-eJocfa jWaWWE bArHDh"> (<!-- -->merge_variables<!-- -->) </span><span> <span class="sc-laZMeE sc-FRrlG jWaWWE ldkmFV"> <!-- -->&lt;= 25000 characters<!-- --> </span></span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>You can input a merge variable payload object to your template to render dynamic content. For example, if you have a template like: <code>{{variable_name}}</code>, pass in <code>{&quot;variable_name&quot;: &quot;Harry&quot;}</code> to render <code>Harry</code>. <code>merge_variables</code> must be an object. Any type of value is accepted as long as the object is valid JSON; you can use <code>strings</code>, <code>numbers</code>, <code>booleans</code>, <code>arrays</code>, <code>objects</code>, or <code>null</code>. The max length of the object is 25,000 characters. If you call <code>JSON.stringify</code> on your object, it can be no longer than 25,000 characters. Your variable names cannot contain any whitespace or any of the following special characters: <code>!</code>, <code>&quot;</code>, <code>#</code>, <code>%</code>, <code>&amp;</code>, <code>&#39;</code>, <code>(</code>, <code>)</code>, <code>*</code>, <code>+</code>, <code>,</code>, <code>/</code>, <code>;</code>, <code>&lt;</code>, <code>=</code>, <code>&gt;</code>, <code>@</code>, <code>[</code>, <code>\</code>, <code>]</code>, <code>^</code>, <code>`</code>, <code>{</code>, <code>|</code>, <code>}</code>, <code>~</code>. More instructions can be found in <a href="https://help.lob.com/print-and-mail/designing-mail-creatives/dynamic-personalization#using-html-and-merge-variables-10" target="_blank">our guide to using html and merge variables</a>. Depending on your <a href="https://dashboard.lob.com/#/settings/account" target="_blank">Merge Variable strictness</a> setting, if you define variables in your HTML but do not pass them here, you will either receive an error or the variable will render as an empty string.</p>
 </div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT sc-gSYDnn jGQAHm cEDeHn eQXlzZ" kind="field" title="send_date"><span class="sc-iemWCZ dDldOx"></span><button aria-label="expand properties"><span class="property-name">send_date</span><svg class="sc-dIsUp hGHhhO" version="1.1" viewBox="0 0 24 24" x="0" xmlns="http://www.w3.org/2000/svg" y="0" aria-hidden="true"><polygon points="17.3 8.3 12 13.6 6.7 8.3 5.3 9.7 12 16.4 18.7 9.7 "></polygon></svg></button></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">string or string</span><span class="sc-laZMeE sc-eJocfa jWaWWE bArHDh"> (<!-- -->send_date<!-- -->) </span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>A timestamp in ISO 8601 format which specifies a date after the current time and up to 180 days in the future to send the letter off for production. Setting a send date overrides the default <a href="#section/Cancellation-Windows">cancellation window</a> applied to the mailpiece. Until the <code>send_date</code> has passed, the mailpiece can be canceled. If a date in the format <code>2017-11-01</code> is passed, it will evaluate to midnight UTC of that date (<code>2017-11-01T00:00:00.000Z</code>). If a datetime is passed, that exact time will be used. A <code>send_date</code> passed with no time zone will default to UTC, while a <code>send_date</code> passed with a time zone will be converted to UTC.</p>
-</div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="size"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">size</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">string</span><span class="sc-laZMeE sc-eJocfa jWaWWE bArHDh"> (<!-- -->self_mailer_size<!-- -->) </span></div><div><span class="sc-laZMeE jWaWWE"> <!-- -->Default:<!-- --> </span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;6x18_bifold&quot;</span></div><div><span class="sc-laZMeE jWaWWE"> <!-- -->Enum<!-- -->:</span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;6x18_bifold&quot;</span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;11x9_bifold&quot;</span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;12x9_bifold&quot;</span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;17.75x9_trifold&quot;</span> </div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>Specifies the size of the self mailer. The <code>17.75x9_trifold</code> size is in beta. Contact <a href="mailto:&#115;&#117;&#112;&#112;&#111;&#114;&#116;&#x40;&#108;&#111;&#98;&#46;&#99;&#111;&#x6d;">&#115;&#117;&#112;&#112;&#111;&#114;&#116;&#x40;&#108;&#111;&#98;&#46;&#99;&#111;&#x6d;</a> or your account contact to learn more.</p>
+</div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="size"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">size</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">string</span><span class="sc-laZMeE sc-eJocfa jWaWWE bArHDh"> (<!-- -->self_mailer_size<!-- -->) </span></div><div><span class="sc-laZMeE jWaWWE"> <!-- -->Default:<!-- --> </span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;6x18_bifold&quot;</span></div><div><span class="sc-laZMeE jWaWWE"> <!-- -->Enum<!-- -->:</span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;6x18_bifold&quot;</span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;11x9_bifold&quot;</span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;12x9_bifold&quot;</span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;17.75x9_trifold&quot;</span> </div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>Specifies the size of the self mailer. The <code>17.75x9_trifold</code> size is in beta. Contact <a href="mailto:&#x73;&#x75;&#x70;&#x70;&#111;&#x72;&#x74;&#64;&#108;&#x6f;&#98;&#46;&#x63;&#111;&#109;">&#x73;&#x75;&#x70;&#x70;&#111;&#x72;&#x74;&#64;&#108;&#x6f;&#98;&#46;&#x63;&#111;&#109;</a> or your account contact to learn more.</p>
 </div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT sc-gSYDnn jGQAHm cEDeHn eQXlzZ" kind="field" title="thumbnails"><span class="sc-iemWCZ dDldOx"></span><button aria-label="expand properties"><span class="property-name">thumbnails</span><svg class="sc-dIsUp hGHhhO" version="1.1" viewBox="0 0 24 24" x="0" xmlns="http://www.w3.org/2000/svg" y="0" aria-hidden="true"><polygon points="17.3 8.3 12 13.6 6.7 8.3 5.3 9.7 12 16.4 18.7 9.7 "></polygon></svg></button></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa">Array of </span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">objects</span><span class="sc-laZMeE sc-eJocfa jWaWWE bArHDh"> (<!-- -->thumbnail<!-- -->) </span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"></div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="expected_delivery_date"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">expected_delivery_date</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">string</span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa"> <!-- -->&lt;<!-- -->date<!-- -->&gt;<!-- --> </span><span class="sc-laZMeE sc-eJocfa jWaWWE bArHDh"> (<!-- -->expected_delivery_date<!-- -->) </span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>A date in YYYY-MM-DD format of the mailpiece&#39;s expected delivery date based on its <code>send_date</code>.</p>
 </div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="date_created"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">date_created</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">string</span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa"> <!-- -->&lt;<!-- -->date-time<!-- -->&gt;<!-- --> </span><span class="sc-laZMeE sc-eJocfa jWaWWE bArHDh"> (<!-- -->date_created<!-- -->) </span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>A timestamp in ISO 8601 format of the date the resource was created.</p>
 </div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="date_modified"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">date_modified</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">string</span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa"> <!-- -->&lt;<!-- -->date-time<!-- -->&gt;<!-- --> </span><span class="sc-laZMeE sc-eJocfa jWaWWE bArHDh"> (<!-- -->date_modified<!-- -->) </span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>A timestamp in ISO 8601 format of the date the resource was last modified.</p>
@@ -3518,7 +3519,7 @@ <h3 id="3-learn-more">3. Learn more</h3>
 </div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="inside_template_version_id"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">inside_template_version_id</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">string or null</span><span class="sc-laZMeE sc-gGLxEB jWaWWE bZSdhu">^vrsn_[a-zA-Z0-9]+$</span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>Unique identifier prefixed with <code>vrsn_</code>.</p>
 </div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="object"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">object</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">string</span></div><div><span class="sc-laZMeE jWaWWE"> <!-- -->Default:<!-- --> </span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;self_mailer&quot;</span></div><div><span class="sc-laZMeE jWaWWE"> <!-- -->Value<!-- -->:</span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;self_mailer&quot;</span> </div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>Value is resource type.</p>
 </div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT sc-gSYDnn jGQAHm cEDeHn eQXlzZ" kind="field" title="tracking_events"><span class="sc-iemWCZ dDldOx"></span><button aria-label="expand properties"><span class="property-name">tracking_events</span><svg class="sc-dIsUp hGHhhO" version="1.1" viewBox="0 0 24 24" x="0" xmlns="http://www.w3.org/2000/svg" y="0" aria-hidden="true"><polygon points="17.3 8.3 12 13.6 6.7 8.3 5.3 9.7 12 16.4 18.7 9.7 "></polygon></svg></button></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa">Array of </span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">objects</span><span class="sc-laZMeE sc-eJocfa jWaWWE bArHDh"> (<!-- -->tracking_event_certified<!-- -->) </span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>An array of certified tracking events ordered by ascending <code>time</code>. Not populated in test mode.</p>
-</div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="fsc"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">fsc</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">boolean</span></div><div><span class="sc-laZMeE jWaWWE"> <!-- -->Default:<!-- --> </span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">false</span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>This is in beta. Contact <a href="mailto:&#x73;&#117;&#x70;&#x70;&#111;&#114;&#x74;&#x40;&#x6c;&#x6f;&#98;&#x2e;&#99;&#111;&#x6d;">&#x73;&#117;&#x70;&#x70;&#111;&#114;&#x74;&#x40;&#x6c;&#x6f;&#98;&#x2e;&#99;&#111;&#x6d;</a> or your account contact to learn more. Not available for <code>11x9_bifold</code> self-mailer size.</p>
+</div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="fsc"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">fsc</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">boolean</span></div><div><span class="sc-laZMeE jWaWWE"> <!-- -->Default:<!-- --> </span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">false</span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>This is in beta. Contact <a href="mailto:&#115;&#x75;&#x70;&#112;&#111;&#114;&#x74;&#x40;&#x6c;&#x6f;&#x62;&#x2e;&#x63;&#x6f;&#x6d;">&#115;&#x75;&#x70;&#112;&#111;&#114;&#x74;&#x40;&#x6c;&#x6f;&#x62;&#x2e;&#x63;&#x6f;&#x6d;</a> or your account contact to learn more. Not available for <code>11x9_bifold</code> self-mailer size.</p>
 </div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="status"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">status</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">string</span><span class="sc-laZMeE sc-eJocfa jWaWWE bArHDh"> (<!-- -->status<!-- -->) </span></div><div><span class="sc-laZMeE jWaWWE"> <!-- -->Enum<!-- -->:</span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;processed&quot;</span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;rendered&quot;</span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;failed&quot;</span> </div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>A string describing the PDF render status:</p>
 <ul>
 <li><code>processed</code> - the rendering process is currently in progress.</li>
@@ -3572,7 +3573,7 @@ <h3 id="3-learn-more">3. Learn more</h3>
 </div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="template_id"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">template_id</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">string</span><span class="sc-laZMeE sc-gGLxEB jWaWWE bZSdhu">^tmpl_[a-zA-Z0-9]+$</span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>Unique identifier prefixed with <code>tmpl_</code>. ID of a saved <a href="#section/HTML-Templates">HTML template</a>.</p>
 </div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="template_version_id"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">template_version_id</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">string</span><span class="sc-laZMeE sc-gGLxEB jWaWWE bZSdhu">^vrsn_[a-zA-Z0-9]+$</span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>Unique identifier prefixed with <code>vrsn_</code>.</p>
 </div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="campaign_id"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">campaign_id</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">string or null</span><span class="sc-laZMeE sc-eJocfa jWaWWE bArHDh"> (<!-- -->campaign_id<!-- -->) </span><span class="sc-laZMeE sc-gGLxEB jWaWWE bZSdhu">^cmp_[a-zA-Z0-9]+$</span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>Denotes resources created by the provided campaign id, prefixed with <code>cmp_</code>.</p>
-</div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="fsc"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">fsc</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">boolean</span></div><div><span class="sc-laZMeE jWaWWE"> <!-- -->Default:<!-- --> </span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">false</span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>This is in beta. Contact <a href="mailto:&#115;&#x75;&#x70;&#112;&#x6f;&#114;&#116;&#x40;&#x6c;&#x6f;&#98;&#x2e;&#99;&#x6f;&#109;">&#115;&#x75;&#x70;&#112;&#x6f;&#114;&#116;&#x40;&#x6c;&#x6f;&#98;&#x2e;&#99;&#x6f;&#109;</a> or your account contact to learn more. Not available for <code>A4</code> letter size.</p>
+</div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="fsc"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">fsc</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">boolean</span></div><div><span class="sc-laZMeE jWaWWE"> <!-- -->Default:<!-- --> </span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">false</span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>This is in beta. Contact <a href="mailto:&#x73;&#x75;&#x70;&#x70;&#x6f;&#114;&#116;&#64;&#108;&#111;&#98;&#x2e;&#99;&#x6f;&#109;">&#x73;&#x75;&#x70;&#x70;&#x6f;&#114;&#116;&#64;&#108;&#111;&#98;&#x2e;&#99;&#x6f;&#109;</a> or your account contact to learn more. Not available for <code>A4</code> letter size.</p>
 </div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="status"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">status</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">string</span><span class="sc-laZMeE sc-eJocfa jWaWWE bArHDh"> (<!-- -->status<!-- -->) </span></div><div><span class="sc-laZMeE jWaWWE"> <!-- -->Enum<!-- -->:</span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;processed&quot;</span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;rendered&quot;</span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;failed&quot;</span> </div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>A string describing the PDF render status:</p>
 <ul>
 <li><code>processed</code> - the rendering process is currently in progress.</li>
@@ -3677,7 +3678,7 @@ <h3 id="3-learn-more">3. Learn more</h3>
 </div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="custom_envelope"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">custom_envelope</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">string or null</span><span class="sc-laZMeE sc-eJocfa jWaWWE bArHDh"> (<!-- -->user_provided<!-- -->) </span><span class="sc-laZMeE sc-gGLxEB jWaWWE bZSdhu">^env_[a-zA-Z0-9]+$</span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>Accepts an envelope ID for any customized envelope with available inventory. If no inventory is available for the specified ID, the letter will not be sent, and an error will be returned. If the letter has more than 6 sheets, it will be sent in a blank flat envelope. Custom envelopes may be created and ordered from the dashboard. This feature is exclusive to certain customers. Upgrade to the appropriate <a href="https://dashboard.lob.com/#/settings/editions" target="_blank">Print &amp; Mail Edition</a> to gain access.</p>
 </div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="billing_group_id"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">billing_group_id</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">string</span><span class="sc-laZMeE sc-eJocfa jWaWWE bArHDh"> (<!-- -->billing_group_id<!-- -->) </span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>An optional string with the billing group ID to tag your usage with. Is used for billing purposes. Requires special activation to use. See <a href="#tag/Billing-Groups">Billing Group API</a> for more information.</p>
 </div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT sc-gSYDnn jGQAHm cEDeHn eQXlzZ" kind="field" title="qr_code"><span class="sc-iemWCZ dDldOx"></span><button aria-label="expand properties"><span class="property-name">qr_code</span><svg class="sc-dIsUp hGHhhO" version="1.1" viewBox="0 0 24 24" x="0" xmlns="http://www.w3.org/2000/svg" y="0" aria-hidden="true"><polygon points="17.3 8.3 12 13.6 6.7 8.3 5.3 9.7 12 16.4 18.7 9.7 "></polygon></svg></button></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">object</span><span class="sc-laZMeE sc-eJocfa jWaWWE bArHDh"> (<!-- -->qr_code<!-- -->) </span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>Customize and place a QR code on the creative at the required position.</p>
-</div></div></div></td></tr><tr class="last "><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="fsc"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">fsc</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">boolean</span></div><div><span class="sc-laZMeE jWaWWE"> <!-- -->Default:<!-- --> </span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">false</span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>This is in beta. Contact <a href="mailto:&#115;&#x75;&#x70;&#112;&#x6f;&#114;&#x74;&#x40;&#108;&#111;&#x62;&#46;&#x63;&#111;&#109;">&#115;&#x75;&#x70;&#112;&#x6f;&#114;&#x74;&#x40;&#108;&#111;&#x62;&#46;&#x63;&#111;&#109;</a> or your account contact to learn more. Not available for <code>A4</code> letter size.</p>
+</div></div></div></td></tr><tr class="last "><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="fsc"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">fsc</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">boolean</span></div><div><span class="sc-laZMeE jWaWWE"> <!-- -->Default:<!-- --> </span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">false</span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>This is in beta. Contact <a href="mailto:&#x73;&#x75;&#x70;&#x70;&#111;&#x72;&#116;&#x40;&#x6c;&#x6f;&#98;&#x2e;&#99;&#x6f;&#x6d;">&#x73;&#x75;&#x70;&#x70;&#111;&#x72;&#116;&#x40;&#x6c;&#x6f;&#98;&#x2e;&#99;&#x6f;&#x6d;</a> or your account contact to learn more. Not available for <code>A4</code> letter size.</p>
 </div></div></div></td></tr></tbody></table><div><h3 class="sc-fIxmyt DvFer">Responses</h3><div><button class="sc-htmcrh lbYftx" aria-expanded="true"><svg class="sc-dIsUp kwUPXW" version="1.1" viewBox="0 0 24 24" x="0" xmlns="http://www.w3.org/2000/svg" y="0" aria-hidden="true"><polygon points="17.3 8.3 12 13.6 6.7 8.3 5.3 9.7 12 16.4 18.7 9.7 "></polygon></svg><strong class="sc-fWWYYk cMoEZ">200<!-- --> </strong><span class="sc-jcwpoC IMGvd"><p>Returns a letter object</p>
 </span></button><div class="sc-cbeScs jDggOG"><table class="sc-hHEiqL gwGvED"><caption class="sc-hkeOVe sc-gVFcvn gNUjCC hahIgV"> Response Headers </caption><tbody><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="ratelimit-limit"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">ratelimit-limit</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">integer</span></div> <div><span class="sc-laZMeE jWaWWE"> <!-- -->Example:<!-- --> </span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">150</span></div><div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>The rate limit for a given endpoint.</p>
 </div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="ratelimit-remaining"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">ratelimit-remaining</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">integer</span></div> <div><span class="sc-laZMeE jWaWWE"> <!-- -->Example:<!-- --> </span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">100</span></div><div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>The number of requests remaining in the current window.</p>
@@ -3719,7 +3720,7 @@ <h3 id="3-learn-more">3. Learn more</h3>
 </div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="template_id"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">template_id</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">string</span><span class="sc-laZMeE sc-gGLxEB jWaWWE bZSdhu">^tmpl_[a-zA-Z0-9]+$</span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>Unique identifier prefixed with <code>tmpl_</code>. ID of a saved <a href="#section/HTML-Templates">HTML template</a>.</p>
 </div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="template_version_id"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">template_version_id</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">string</span><span class="sc-laZMeE sc-gGLxEB jWaWWE bZSdhu">^vrsn_[a-zA-Z0-9]+$</span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>Unique identifier prefixed with <code>vrsn_</code>.</p>
 </div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="campaign_id"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">campaign_id</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">string or null</span><span class="sc-laZMeE sc-eJocfa jWaWWE bArHDh"> (<!-- -->campaign_id<!-- -->) </span><span class="sc-laZMeE sc-gGLxEB jWaWWE bZSdhu">^cmp_[a-zA-Z0-9]+$</span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>Denotes resources created by the provided campaign id, prefixed with <code>cmp_</code>.</p>
-</div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="fsc"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">fsc</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">boolean</span></div><div><span class="sc-laZMeE jWaWWE"> <!-- -->Default:<!-- --> </span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">false</span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>This is in beta. Contact <a href="mailto:&#115;&#117;&#112;&#x70;&#111;&#x72;&#116;&#x40;&#x6c;&#111;&#98;&#46;&#x63;&#111;&#x6d;">&#115;&#117;&#112;&#x70;&#111;&#x72;&#116;&#x40;&#x6c;&#111;&#98;&#46;&#x63;&#111;&#x6d;</a> or your account contact to learn more. Not available for <code>A4</code> letter size.</p>
+</div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="fsc"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">fsc</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">boolean</span></div><div><span class="sc-laZMeE jWaWWE"> <!-- -->Default:<!-- --> </span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">false</span></div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>This is in beta. Contact <a href="mailto:&#115;&#117;&#112;&#112;&#x6f;&#114;&#116;&#x40;&#x6c;&#x6f;&#98;&#x2e;&#x63;&#x6f;&#109;">&#115;&#117;&#112;&#112;&#x6f;&#114;&#116;&#x40;&#x6c;&#x6f;&#98;&#x2e;&#x63;&#x6f;&#109;</a> or your account contact to learn more. Not available for <code>A4</code> letter size.</p>
 </div></div></div></td></tr><tr class=""><td class="sc-hBMUJo sc-fFSPTT jGQAHm cEDeHn" kind="field" title="status"><span class="sc-iemWCZ dDldOx"></span><span class="property-name">status</span></td><td class="sc-bkbkJK QChaC"><div><div><span class="sc-laZMeE sc-iNiQyp jWaWWE jrLlAa"></span><span class="sc-laZMeE sc-jffHpj jWaWWE cThoNa">string</span><span class="sc-laZMeE sc-eJocfa jWaWWE bArHDh"> (<!-- -->status<!-- -->) </span></div><div><span class="sc-laZMeE jWaWWE"> <!-- -->Enum<!-- -->:</span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;processed&quot;</span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;rendered&quot;</span> <span class="sc-laZMeE sc-ckTSus jWaWWE laxFpG">&quot;failed&quot;</span> </div> <div><div class="sc-iJCRrE sc-ciSkZP jCdxGr kSHRGn"><p>A string describing the PDF render status:</p>
 <ul>
 <li><code>processed</code> - the rendering process is currently in progress.</li>