You can link your Google Ads account to your Firebase project to use the audiences created using Firebase data.
Before you begin
It's not possible to use remarketing lists from Firebase audiences unless your accounts are linked. To find out how to link your Google Ads account to Firebase, read Link Google Ads to Firebase.
How it works
You can create mobile app remarketing lists, based on Firebase audiences, in your Google Ads account. Bear in mind that lists based on mobile app data can only be targeted by Display Network campaigns. Below are some lists that will be available by default in Google Ads if the account is linked to a Firebase project. Additionally, you can create audiences in Firebase using any combination of events and user properties; for example, create an audience of “Android users who live in Brazil”.
- Purchasers. People who have purchased an app or made an in-app purchase.
- All users. People who have installed your app.
Remarketing lists created in Firebase
Any remarketing lists created in the Firebase account are managed by Firebase. The Google Ads account holder won't be able to make changes to those lists. If the Google Ads account is unlinked, ad groups that are actively targeting lists based on Firebase data will stop running.
Sharing remarketing lists between Google Ads accounts
Managed accounts with access to Firebase data can also share Firebase data with managed accounts. The Firebase account admin can share those lists with other managed accounts, or with manager accounts. If at any point the link between the Google Ads account and Firebase is broken, all of the other accounts sharing that data will no longer have access and the ad groups targeting lists based on those accounts will stop running.