i used Facebook graph API for sending notification to Facebook from my website , I used p-h-p code in it . it working perfectly on desktop site , but when i open Facebook from my android/iPhone phone , notification is not displaying.
i tried all open that provided by Facebook app notifications doc.
but its not working please somebody help me.
The notifications are only surfaced on the desktop web version of Facebook
Source: https://developers.facebook.com/docs/games/services/appnotifications