[GA4] Firebase integration

To preserve historical Google Analytics for Firebase app data from an existing Firebase project, use the Google Analytics 4 property already linked to that Firebase project instead of creating a new property.

If you do not currently have a Google Analytics 4 property:

1. Create a new Google Analytics 4 property.
2. During property creation, skip the step of adding an app data stream.
3. Link your existing Firebase project to the new Google Analytics 4 property.

Starting from Google Analytics

Create a Google Analytics 4 property

To measure app data in Analytics, you need to create a corresponding project in Firebase and establish a link between that project and your property.

Learn more about creating a Google Analytics 4 property

Firebase users who have access to that project and who have the Firebase permission firebaseanalytics.resources.googleAnalyticsEdit, such as Project Owners, also effectively have Edit permission for the linked Google Analytics 4 property by default.

Update settings after creating the link

After you create a Google Analytics 4 property and establish the link to your Firebase project, you have options to:

• Set the maximum Analytics permission for all Firebase users
• Turn off enhanced audience integration (the feature is on by default)

To open these settings:

1. Click Admin.
2. At the top of the Property column, use the dropdown selector to select the property you want to edit.
3. Under Product Linking, click Firebase Linking.
4. Find the row for the relevant Firebase project ID.

User access (permissions in Analytics)

Select the maximum Analytics permission for all Firebase users to one of the following:

• Edit (including link management) (default)
• Edit (excluding link management)
• Read and analyze
• No permission

With either Edit permission, Firebase users are able to carry out operations in Analytics for Firebase like create audiences, mark events as conversions, and link the Google Analytics 4 property to Google Ads.

Enhanced audience integration

Enhanced audience integration provides the following benefits:

• Prepopulate audiences exported to Firebase with up to 30 days of data when that data is available.
• Export predictive audiences and audiences based on dynamic evaluation and/or time-windowed metrics from Analytics to Firebase.

The feature is on by default after you create the link. Turn the feature off if necessary.

Starting from Firebase

If you previously enabled Analytics for your Firebase project, then when you upgrade your project, your project is automatically linked to a Google Analytics 4 property.

If you did not initially enable Analytics for your project but choose to later, then you have the option to automatically create a new Google Analytics 4 property or you can link to an existing Google Analytics 4 property.

Create a project

When you create a project in Firebase, you have the option to integrate with Analytics. If you already have one or more Google Analytics accounts, you can associate your project with one of those. If you do not already have a Google Analytics Account, a new one will be created for you with the name Default Account for Firebase.

Firebase users who have access to that project and who have the Firebase permission firebaseanalytics.resources.googleAnalyticsEdit, such as Project Owners, also effectively have Edit permission for the linked Google Analytics 4 property by default.

Analytics users who subsequently edit the Google Analytics 4 property settings have the option to set the maximum Analytics permission for all Firebase users to one of the following:

• Edit (including link management) (default)
• Edit (excluding link management)
• Read and analyze
• No permission

With either Edit permission, Firebase users are still able to carry out operations in Analytics for Firebase like create audiences, mark events as conversions, and link Analytics for Firebase to Google Ads. You carry out administration of the property in Google Analytics Admin rather than in the Firebase console.

Link your Firebase project to Analytics

Firebase Owners can set up and manage the Analytics link under Project Settings > Integrations.

Set up a new Analytics link

1. Open your Firebase project.
2. Open Project settings > Integrations.
3. On the Google Analytics card, click Link.
4. Select an Analytics Account or create a new one.
   • If you select an existing account, you have the option to select an existing Google Analytics 4 property in that account or to create a new property.
   • If you create a new account, then a new Google Analytics 4 property is created for you and your project is linked to that property.
   • Learn more about setup and limits
5. Configure your Analytics settings.

Edit an Analytics link

1. Open your Firebase project.
2. Open Project settings > Integrations.
3. On the Google Analytics card, click View link.
4. Remove the existing Analytics link.
5. Follow the instructions for setting up a new Analytics link.

Relink your Firebase project

If you had previously linked your Firebase project with your Analytics account but are no longer able to locate your Firebase project in Analytics:

1. Open your Firebase project.
2. Open Project settings > Integrations.
3. Click the Analytics card to link Analytics to your project.

Unlink Analytics from your Firebase project

Firebase Owners can unlink Analytics under Project Settings > Integrations.