Reply To: Migrating from UA to GA4 for Mobile and Setting up Custom Events in GTM: Documentation and Information Required

[Sophia]

You’re actually already on the right track! In fact, Firebase Analytics events are the same as GA4 events. So, you don’t even need to connect your GTM container for GA4 migration from GA3.

The main thing you need to do is integrate Firebase Analytics into your mobile app. That’s how you’ll be able to pass events data into GA4. The cool thing about using GTM with this is you can actually add, modify, or delete Firebase events.

Here is a useful link for you about Firebase Analytics: [https://firebase.google.com/docs/analytics](https://firebase.google.com/docs/analytics)