Weird error with Facebook Messenger Platform/bot Welcome Confugration

Question

I\'m getting a weird error while configuring welcome message for my Messenger bot. I\'ve been using the same code (as shown below) and it has just been working fine until last n

Answer 1

This error was due to an API change.

New call:

curl -X POST -H "Content-Type: application/json" -d '{
  "setting_type":"call_to_actions",
  "thread_state":"new_thread",
  "call_to_actions":[{
    "payload":"START"
  }]
}' "https://graph.facebook.com/v2.6//thread_settings?access_token="

Just add a payload like {"payload":"START"}

If a user press the "Getting started" button, you receive this payload in your messageHandler (webhook). Check if $incomingMessage == "START" and send back your structured message, or whatever you want.

Messages like before are not supported anymore.

Bug report: https://developers.facebook.com/bugs/1751749508372552/