diff --git a/BotEssentials.py b/BotEssentials.py
index 8a32ff6..5a0a488 100644
--- a/BotEssentials.py
+++ b/BotEssentials.py
@@ -34,6 +34,8 @@ class BotEssentials(commands.Cog):
 	"""All of the essential methods all of our bots should have"""
 	def __init__(self, bot):
 		self.bot = bot
+		self.invite_url = "https://discord.gg/mpGM5cg"
+
 			
 	@commands.Cog.listener()
 	async def on_ready(self):
@@ -42,13 +44,16 @@ async def on_ready(self):
 	@commands.Cog.listener()
 	async def on_member_join(self, member):
 		local_logger.info("User {0.name}[{0.id}] joined {1.name}[{1.id}]".format(member, member.guild))
-		await member.guild.system_channel.send("Welcome to {} {}! Please make sure to take a look at our {} and before asking a question, at the {}".format(member.guild.name, member.mention, CHANNELS["rules"].mention, CHANNELS["faq"].mention))
+		welcome_msg = get_conf(member.guild.id)["messages"]["welcome"]
+		if welcome_msg != False:
+			await member.guild.system_channel.send(welcome_msg.format(member.mention))
 
 	@commands.Cog.listener()
 	async def on_member_remove(self, member):
 		local_logger.info("User {0.name}[{0.id}] left {1.name}[{1.id}]".format(member, member.guild))
-		await member.guilg.system_channel.send("Goodbye {0.name} {1}, may your wandering be fun!".format(member, EMOJIS["wave"]))
-
+		goodbye_msg = get_conf(member.guild.id)["messages"]["welcome"]
+		if goodbye_msg != False:
+			await member.guild.system_channel.send(goodbye_msg.format(member.mention))		
 
 	@commands.command()
 	async def ping(self, ctx):
@@ -56,7 +61,6 @@ async def ping(self, ctx):
 		latency = self.bot.latency
 		await ctx.send("**Pong !** Latency of {0:.3f} seconds".format(latency))
 
-
 	#Command that shuts down the bot
 	@commands.command()
 	@is_runner()
diff --git a/Config.py b/Config.py
index db95e03..e8a73ea 100644
--- a/Config.py
+++ b/Config.py
@@ -38,6 +38,8 @@ def __init__(self, bot):
 		self.allowed_answers = {1:["yes", "y"],
 								0:["no", "n"]}
 
+		self.ad_msg = "I ({}) have recently been added to this server ! I hope I'll be useful for you. Hopefully you won't find me too many bugs. However if you do I would apreicate it if you could report them to the server ({}) where my developers are ~~partying~~ working hard to make me better ! This is also the place to share your thoughts on how to improve me. Have a nice day and maybe, see you there {}".format(self.bot.mention, self.invite_url, EMOJIS["wave"])
+
 
 
 	@commands.group()
@@ -242,7 +244,7 @@ async def cfg_welcome(self, ctx):
 
 			while retry:
 
-				await self.config_channels[ctx.guild.id].send("Enter the message you'd like to be sent to the new users. If you want to mention them use `{}`")
+				await self.config_channels[ctx.guild.id].send("Enter the message you'd like to be sent to the new users. If you want to mention them use `{0}`")
 
 				message = await self.bot.wait_for("message", check=self.is_answer)
 
@@ -289,7 +291,7 @@ async def cfg_goodbye(self, ctx):
 
 			while retry:
 
-				await self.config_channels[ctx.guild.id].send("Enter the message you'd like to be sent. If you want to mention them use `{}`")
+				await self.config_channels[ctx.guild.id].send("Enter the message you'd like to be sent. If you want to mention them use `{0}`")
 
 				message = await self.bot.wait_for("message", check=self.is_answer)
 
@@ -333,6 +335,14 @@ async def allow_ad(ctx):
 			old_conf = get_conf(ctx.guild.id)
 			old_conf["advertisement"] = reponse.channel_mentions[0].id
 
+			chan = dfind(lambda c: c.id==old_conf["advertisement"], ctx.guild.channels)
+			chan.send(self.ad_msg)
+
+			#updating conf
+			update_conf(ctx.guild.id, old_conf)
+
+
+
 		except Exception as e:
 			local_logger.exception(e)
 			raise e