AlexHv
2017-11-20 21:15:46
Ok I found the problem.
Although my app was correctly subscribed to the page with all valid and never expiring tokens, one authorization was missing.
If you encounter the same problem follow those steps :
-> go to business manager
-> go to busienss settings
-> go to leads access tab
-> select your page
-> click "CRMs"
-> Select your app and assign access
Hurray
Does this work for the development app or only for live app?