diff --git a/router/router.go b/router/router.go
index 21984a4b..ca3a347f 100644
--- a/router/router.go
+++ b/router/router.go
@@ -49,19 +49,22 @@ func NewServer(h Handlers) *echo.Echo {
 		apiRequests := api.Group("/requests", h.CheckLoginMiddleware)
 		{
 			apiRequests.GET("", h.GetRequests)
-			apiRequests.POST("", h.PostRequest, middleware.BodyDump(service.WebhookEventHandler))
+			apiRequests.POST(
+				"",
+				h.PostRequest,
+				middleware.BodyDump(service.WebhookRequestsEventHandler))
 			apiRequestIDs := apiRequests.Group("/:requestID", retrieveRequestCreator)
 			{
 				apiRequestIDs.GET("", h.GetRequest)
 				apiRequestIDs.PUT(
 					"",
 					h.PutRequest,
-					middleware.BodyDump(service.WebhookEventHandler),
+					middleware.BodyDump(service.WebhookRequestsEventHandler),
 					h.CheckRequestCreatorMiddleware)
 				apiRequestIDs.POST(
 					"/comments",
 					h.PostComment,
-					middleware.BodyDump(service.WebhookEventHandler))
+					middleware.BodyDump(service.WebhookRequestsEventHandler))
 				apiRequestIDs.PUT("/status", h.PutStatus, h.CheckAdminOrRequestCreatorMiddleware)
 			}
 		}
@@ -72,13 +75,13 @@ func NewServer(h Handlers) *echo.Echo {
 			apiTransactions.POST(
 				"",
 				h.PostTransaction,
-				middleware.BodyDump(service.WebhookEventHandler),
+				middleware.BodyDump(service.WebhookTransactionsEventHandler),
 				h.CheckAdminMiddleware)
 			apiTransactions.GET("/:transactionID", h.GetTransaction)
 			apiTransactions.PUT(
 				"/:transactionID",
 				h.PutTransaction,
-				middleware.BodyDump(service.WebhookEventHandler),
+				middleware.BodyDump(service.WebhookTransactionsEventHandler),
 				h.CheckAdminMiddleware)
 		}
 
diff --git a/service/webhook.go b/service/webhook.go
index c2059158..1f1a3cdd 100644
--- a/service/webhook.go
+++ b/service/webhook.go
@@ -36,7 +36,15 @@ type CommentApplication struct {
 	Comment string    `json:"comment"`
 }
 
-type TransactionRequestApplication struct {
+type TransactionPostRequestApplication struct {
+	ID     uuid.UUID `json:"id"`
+	Amount int       `json:"amount"`
+	Target string    `json:"target"`
+	Tags   []*Tag    `json:"tags"`
+	Group  *Group    `json:"group"`
+}
+
+type TransactionPutRequestApplication struct {
 	ID     uuid.UUID `json:"id"`
 	Amount int       `json:"amount"`
 	Target string    `json:"target"`
@@ -72,117 +80,133 @@ type Webhook struct {
 	ID        string
 }
 
-func WebhookEventHandler(c echo.Context, reqBody, resBody []byte) {
+func WebhookRequestsEventHandler(c echo.Context, reqBody, resBody []byte) {
 	webhookSecret := os.Getenv("WEBHOOK_SECRET")
 	webhookChannelId := os.Getenv("WEBHOOK_CHANNEL_ID")
 	webhookId := os.Getenv("WEBHOOK_ID")
 	var message string
 
-	if strings.Contains(c.Request().URL.Path, "/api/requests") {
-		if strings.Contains(c.Request().URL.Path, "/comments") {
-			resApp := new(CommentApplication)
-			err := json.Unmarshal(resBody, resApp)
-			if err != nil {
-				return
-			}
-			splitedPath := strings.Split(c.Request().URL.Path, "/")
+	if strings.Contains(c.Request().URL.Path, "/comments") {
+		resApp := new(CommentApplication)
+		err := json.Unmarshal(resBody, resApp)
+		if err != nil {
+			return
+		}
+		splitedPath := strings.Split(c.Request().URL.Path, "/")
 
-			message += fmt.Sprintf(
-				"## :comment:[申請](%s/requests/%s)",
-				"https://jomon.trap.jp",
-				splitedPath[3])
-			message += "に対する"
-			message += fmt.Sprintf(
-				"[コメント](%s/requests/%s/comments/%s)",
-				"https://jomon.trap.jp",
-				splitedPath[3],
-				resApp.ID)
-			message += "が作成されました\n\n"
-			message += resApp.Comment + "\n"
-		} else {
-			resApp := new(RequestApplication)
-			err := json.Unmarshal(resBody, resApp)
-			if err != nil {
-				return
-			}
-			if c.Request().Method == http.MethodPost {
-				message += "## :receipt:申請が作成されました\n"
-			} else if c.Request().Method == http.MethodPut {
-				message += "## :receipt:申請が更新されました\n"
-			}
+		message += fmt.Sprintf(
+			"## :comment:[申請](%s/requests/%s)",
+			"https://jomon.trap.jp",
+			splitedPath[3])
+		message += "に対する"
+		message += fmt.Sprintf(
+			"[コメント](%s/requests/%s/comments/%s)",
+			"https://jomon.trap.jp",
+			splitedPath[3],
+			resApp.ID)
+		message += "が作成されました\n\n"
+		message += resApp.Comment + "\n"
+	} else {
+		resApp := new(RequestApplication)
+		err := json.Unmarshal(resBody, resApp)
+		if err != nil {
+			return
+		}
+		if c.Request().Method == http.MethodPost {
+			message += "## :receipt:申請が作成されました\n"
+		} else if c.Request().Method == http.MethodPut {
+			message += "## :receipt:申請が更新されました\n"
+		}
 
-			message += fmt.Sprintf(
-				"### [%s](%s/applications/%s)\n",
-				resApp.Title,
-				"https://jomon.trap.jp",
-				resApp.ID)
-
-			amount := lo.Reduce(resApp.Targets, func(amo int, target *Target, _ int) int {
-				return amo + target.Amount
-			}, 0)
-			message += fmt.Sprintf("- 支払金額: %d円\n", amount)
-
-			if resApp.Group != nil {
-				message += fmt.Sprintf("- 請求先グループ: %s\n", resApp.Group.Name)
-			}
-
-			if len(resApp.Tags) != 0 {
-				tags := lo.Map(resApp.Tags, func(tag *Tag, _ int) string {
-					return tag.Name
-				})
-				message += fmt.Sprintf("- タグ: %s", strings.Join(tags, ", "))
-			}
-			message += "\n\n"
-			message += resApp.Content + "\n"
+		message += fmt.Sprintf(
+			"### [%s](%s/applications/%s)\n",
+			resApp.Title,
+			"https://jomon.trap.jp",
+			resApp.ID)
+
+		amount := lo.Reduce(resApp.Targets, func(amo int, target *Target, _ int) int {
+			return amo + target.Amount
+		}, 0)
+		message += fmt.Sprintf("- 支払金額: %d円\n", amount)
+
+		if resApp.Group != nil {
+			message += fmt.Sprintf("- 請求先グループ: %s\n", resApp.Group.Name)
 		}
-	} else if strings.Contains(c.Request().URL.Path, "/api/transactions") {
-		var resApps []TransactionRequestApplication
+
+		if len(resApp.Tags) != 0 {
+			tags := lo.Map(resApp.Tags, func(tag *Tag, _ int) string {
+				return tag.Name
+			})
+			message += fmt.Sprintf("- タグ: %s", strings.Join(tags, ", "))
+		}
+		message += "\n\n"
+		message += resApp.Content + "\n"
+	}
+	_ = RequestWebhook(message, webhookSecret, webhookChannelId, webhookId, 1)
+}
+
+func WebhookTransactionsEventHandler(c echo.Context, reqBody, resBody []byte) {
+	webhookSecret := os.Getenv("WEBHOOK_SECRET")
+	webhookChannelId := os.Getenv("WEBHOOK_CHANNEL_ID")
+	webhookId := os.Getenv("WEBHOOK_ID")
+	var message string
+
+	if c.Request().Method == http.MethodPost {
+		var resApps []TransactionPostRequestApplication
 		err := json.Unmarshal(resBody, &resApps)
-		resApp := resApps[0]
-		if err != nil {
+		if err != nil || len(resApps) < 1 {
 			return
 		}
-		if c.Request().Method == http.MethodPost {
+		message += fmt.Sprintf(
+			"## :scroll:[入出金記録](%s/transactions/%s)が新規作成されました\n",
+			"https://jomon.trap.jp",
+			resApps[0].ID)
+		targets := lo.Map(
+			resApps, func(resApp TransactionPostRequestApplication, _ int) string {
+				return resApp.Target
+			})
+		if resApps[0].Amount < 0 {
 			message += fmt.Sprintf(
-				"## :scroll:[入出金記録](%s/transactions/%s)が新規作成されました\n",
-				"https://jomon.trap.jp",
-				resApp.ID)
-		} else if c.Request().Method == http.MethodPut {
+				"- %sへの支払い\n    - 支払い金額: 計%d円(一人当たりへの支払い金額: %d円)\n",
+				strings.Join(targets, " "),
+				-len(resApps)*resApps[0].Amount,
+				-resApps[0].Amount)
+		} else {
 			message += fmt.Sprintf(
-				"## :scroll:[入出金記録](%s/transactions/%s)が修正されました\n",
-				"https://jomon.trap.jp",
-				resApp.ID)
+				"- %sからの振込\n    - 受け取り金額: 計%d円(一人当たりからの受け取り金額: %d円)\n",
+				strings.Join(targets, " "),
+				len(resApps)*resApps[0].Amount,
+				resApps[0].Amount)
+		}
+		if resApps[0].Group != nil {
+			message += fmt.Sprintf("- 関連するグループ: %s\n", resApps[0].Group.Name)
+		}
+		if len(resApps[0].Tags) != 0 {
+			tags := lo.Map(resApps[0].Tags, func(tag *Tag, _ int) string {
+				return tag.Name
+			})
+			message += fmt.Sprintf("- タグ: %s", strings.Join(tags, ", "))
 		}
-		if len(resApps) == 1 {
-			if resApp.Amount < 0 {
-				message += fmt.Sprintf(
-					"- `%s`への支払い\n    - 支払い金額: %d円\n",
-					resApp.Target,
-					-resApp.Amount)
-			} else {
-				message += fmt.Sprintf(
-					"- `%s`からの振込\n    - 受け取り金額: %d円\n",
-					resApp.Target,
-					resApp.Amount)
-			}
+	} else if c.Request().Method == http.MethodPut {
+		var resApp TransactionPutRequestApplication
+		err := json.Unmarshal(resBody, &resApp)
+		if err != nil {
+			return
+		}
+		message += fmt.Sprintf(
+			"## :scroll:[入出金記録](%s/transactions/%s)が修正されました\n",
+			"https://jomon.trap.jp",
+			resApp.ID)
+		if resApp.Amount < 0 {
+			message += fmt.Sprintf(
+				"- `%s`への支払い\n    - 支払い金額: %d円\n",
+				resApp.Target,
+				-resApp.Amount)
 		} else {
-			targets := lo.Map(
-				resApps, func(resApp TransactionRequestApplication, _ int) string {
-					return resApp.Target
-				})
-			if resApp.Amount < 0 {
-				message += fmt.Sprintf(
-					"- %sへの支払い\n    - 支払い金額: 計%d円(一人当たりへの支払い金額: %d円)\n",
-					strings.Join(targets, " "),
-					-len(resApps)*resApp.Amount,
-					-resApp.Amount)
-			} else {
-				message += fmt.Sprintf(
-					"- %sからの振込\n    - 受け取り金額: 計%d円(一人当たりからの受け取り金額: %d円)\n",
-					strings.Join(targets, " "),
-					len(resApps)*resApp.Amount,
-					resApp.Amount)
-			}
+			message += fmt.Sprintf(
+				"- `%s`からの振込\n    - 受け取り金額: %d円\n",
+				resApp.Target,
+				resApp.Amount)
 		}
 		if resApp.Group != nil {
 			message += fmt.Sprintf("- 関連するグループ: %s\n", resApp.Group.Name)
@@ -194,7 +218,6 @@ func WebhookEventHandler(c echo.Context, reqBody, resBody []byte) {
 			message += fmt.Sprintf("- タグ: %s", strings.Join(tags, ", "))
 		}
 	}
-
 	_ = RequestWebhook(message, webhookSecret, webhookChannelId, webhookId, 1)
 }