FCM Push Notification not working in ios production

[kishore jugge]

Hi Team,

We have implemented FCM notification for iOS. We have made setup at client side(app) and server side. We have uploaded development and production certificates in the FCM console. App receiving the FCM push notifications from the server properly in the development environment. We have given the build to testflight with production certificates. Then app stopped receiving the Notifications. Out of 20 times we are receiving 2-3 times and with very delay. Server getting InternalServerError  most of the times.

rverError

This is the response we are getting from FCM

{"multicast_id":5596724568726614694,"success":0,"failure":1,"canonical_ids":0,"results":[{"error":"InternalServerError"}]}

Any suggestions?

Thanks in advance

Kishore

[Fabian Cuesta]

We have the same issue with an adhoc app. Nothing changed and suddenly no notifications were delivered (we use push data)

We test sending a normal push notifications and it went throughout. We try with the console and got a Failed (Invalid APNs certificate. Check the certificate in Settings).

So we generate a new certificate and both push data notifications and firebase console start working again.

Please let me know what happen! This an unacceptable behavior.

Thanks

Fabian