App Transfer and Sign in With Apple with Firebase

Hi everyone!

I am in the process of transferring an app from account (A) to account (B), and I am wondering how the various steps in the documentation link to the transfer process.

In particular:

  1. https://developer.apple.com/documentation/sign_in_with_apple/transferring_your_apps_and_users_to_another_team -> I understood that this process can be done BEFORE the migration to create all the transfer_sub beforehand.
  2. https://developer.apple.com/documentation/sign_in_with_apple/bringing_new_apps_and_users_into_your_team -> when can this be done? After initiating the transfer or only after the transfer is completed?

Moreover, what about the private key used for Sign in With Apple from the old team? Will it still work before/after the transfer, or in which step it will stop work? For example, in Firebase we set-up the Apple Sign in using the (A) team_id and private_key. When should we change this in Firebase? After initiating the transfer, after the transfer is completed? Will the old key stop working after the transfer is completed? Thank you!

Post not yet marked as solved Up vote post of lucr97 Down vote post of lucr97
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Hi, we're you able to figure this out especially the questions about changing the team_id and private key on Firebase after the transfer? I'm afraid that it will break sign in with apple unless we change it after transfer has completed.