Transfer firebase app to another google account

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I'm trying to transfer the app on Google Console and Firebase to another account.

I'm using FCM, Crashlytics, remote config features in firebase

Is there anything I need to change to use the same function when migrating the firebase app? (for example. need to change Fmc server key??)

Also, the Android app uses internal storage such as realm and preference. Is this also a problem when migrating the app?? let me know if there is

thanks.