Topics on Firebase Cloud Messaging?

android firebase-cloud-messaging firebase-notifications
Atenica picture Atenica · Jun 15, 2016 · Viewed 7.1k times · Source

Is there any constraints about number of different topics for Firebase Cloud Messaging in one app?

Answer

AL. picture AL. · Jun 16, 2016

Nope. Seeing that FCM has GCM as its core, there is no limit in the number of Topics for any app. There used to be a 1 million limit, but it was removed. You can refer to this Google Developers Blog for that.

Also, when creating a Topic in FCM, it could take up to 24 hours for it to be show up in the Firebase Console, as per this post. Cheers! :D

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