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Correct Way to Add Mobile App Data Streams in GA4
Himanshu Sharma
June 22, 2025
Don’t make this mistake when adding mobile app data streams to your GA4 property.
Many GA4 users add mobile app data streams from the user interface of the GA4 property. But this is not the correct way.
When you create a mobile app stream from a GA4 property, you do not get the option to link to an existing Firebase project.
Instead, the following things happen automatically:
A new Google Cloud project is automatically created.
A new Firebase project is automatically created.
The new Firebase project is automatically connected to your GA4 property.
And your mobile apps are most likely not added to this new Firebase project.
What you should do instead is to