In order to troubleshoot notifications delivery we used FCM diagnostics as recommended at:
https://support.google.com/googleplay/android-developer/answer/2663268?hl=en
But now I see:
FCM diagnostics page to be removed
From Nov 20 2017, the FCM diagnostics page will be removed along with any historical data. However, you can continue to access other Firebase Cloud Messaging features on the Play Console.
What is an alternative to track delivery problem per message_id
? I can't believe they would like to troubleshoot our issue in support tickets...