So this has been such an annoying issue I've been having with facebook.
We :
- created a messenger app
- verified the web-hook
- submitted the app for review
- got approval from Facebook
Everything works perfectly if we use the developers and users associated with the app, but for some reason any other user will not work at all!
The only explanation I see why it isn't work is because the app is in development mode, but apparently facebook removed that and replaced it with Access Levels.

I've been looking at documentation and can't find anything! Any directional help that I may have missed would be greatly appreciated!
