Google Cloud Messaging (GCM) or Firebase Cloud Messaging (FCM)

At this time, Mixpanel’s Android push services leverage Google Cloud Messaging (GCM) instead of Firebase Cloud Messaging (FCM). Mixpanel plans to transition push infrastructure to FCM as Google has deprecated GCM and fully adopted FCM.

Mixpanel supports FCM for new implementations, as well as GCM for existing implementations. To use FCM, pass your FCM Sender/App ID into the initPushHandling function, and use your Firebase API Key for delivery.

Read more details on initPushHandling and what to do with the API Key (whether it's FCM or GCM).

Moving from GCM to FCM

Your users’ existing push tokens will work with your updated FCM API key if moving from GCM to FCM.

Access Google's migration guide here.

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