facebookfacebook-graph-apibotsfacebook-messengerfacebook-messages

where can I find error code information for facebook bot send api?

I am sending daily messages to my bot users and I am getting error for some users which says error messages like:

(#100) No matching user found

or

(#551) This person isn't receiving messages from you right now

but Facebook doesn't have proper error documentations for these errors..

did anyone else come across these issues?

Solution

  • After digging a bit in the bugs platform of Facebook I found some interesting threads.

    For the No matching user found

    It appears that the end user could have delete the thread. Which means you can push content to user anymore until he/she chat with your bot again.

    The error message isn't clear at all by the way.

    See: https://developers.facebook.com/bugs/254681614897363/

    I've tested this theory on my bot and I got the behavior they described. I can push message to users who deleted the thread.

    For the This person isn't receiving messages from you right now

    It seems that it can be a confirmed bug about that. Not sure if it is really relevant regarding your error.

    See: https://developers.facebook.com/bugs/2031788773712021/

    I've also tested on my bot and got the same result when I block all messages from the bot.