I am unable to add Facebook Messenger as a channel to my bot. I'm receiving 400 error in the console and a fairly arcane error message (see the attached image). I have been able to successfully add DirectLine, Skype, and Slack.
From a troubleshooting perspective, I've tried the following:
- Create a new bot and try adding Facebook Messenger
- Create a new Facebook App
- Chrome, Safari, and Firefox all in regular and incognito modes
- Create a bot using a different Azure and Bot Framework account and a different Facebook account
Any help would be much appreciated.