Our mobile app tracks app installs with AppsFlyer. We now need to track installs with Firebase. Our Firebase app links to Google Analytics. So, we are trying to integrate Appsflyer to GA and get AppsFlyer to send install events to GA automatically.
Following the link below, AppsFlyer requires GA's tracking_id as the Account_Id for the integration. As our GA property was linked from Firebase project, there isn't any tracking_id. Is there any other firebase id we can use for this?
https://support.appsflyer.com/hc/en-us/articles/207040616-Google-Analytics-integrations#intro