I'm trying to use Messenger channel in a Flex instance, however, I haven't been able to make it work. The closest I've got is using at the Facebook channel configuration the function url INBOUND MESSAGE as callback url, this way I receive the messenger notification in Flex Agent console but there's no message in it.
If I use the webhook url provided by the Flow created in Studio I get a XML response error because it's not providing the expected format.
Sadly I find documentation really incomplete and scarce so I haven't been able to figure this out.
Anyone has a proper documentation on how to make facebook messenger work with Flex??
Thanks
Twilio developer evangelist here.
Apologies for the lack of documentation here, we are continuing to work on that. I'm told that the easiest thing to do would be to follow this guide for connecting WhatsApp to Flex, substituting Facebook for WhatsApp.
Let me know how that goes for you.