Hello Apple Developer Support,
We need assistance with migrating Sign in with Apple users after completing an app transfer between two Apple Developer Teams.
Current situation
The app transfer has been completed and accepted by the recipient team. The recipient team has not yet released a new version on the App Store.
Our production server, database, API domain, Bundle ID, and existing application user accounts remain unchanged.
Before the transfer, we had never created a Sign in with Apple private key under the transferor team. Therefore, we do not have a previously generated .p8 private key for this app. This is not a case of a lost or revoked key.
After the transfer, the app’s identifier is no longer listed under the transferor team’s Certificates, Identifiers & Profiles. When attempting to create a Sign in with Apple key under that team, we cannot select the transferred App ID as the primary App ID.
Migration blocker
According to Apple’s migration documentation, the transferor team must use its own client_secret to obtain a migration access token and generate a transfer_sub for each existing user.
We are unsure how to obtain valid transferor-team credentials now that the App ID has moved to the recipient team and no private key was created before the transfer.
Questions
What is the supported procedure for obtaining valid transferor-team migration credentials in this situation?
Can the transferor team create or configure a new Sign in with Apple private key for the transferred App ID after the transfer has been completed?
If this cannot be done through the developer portal, can Apple Developer Support assist, or is there another supported migration method?
Is transferring the app back to the original team, preparing the migration credentials and user transfer identifiers, and then transferring it again necessary in this situation? We would like to confirm whether this is required before making any further changes to the app’s ownership.
We understand that the user migration process has a 60-day transfer window. We would appreciate guidance on resolving this credential issue promptly so that existing users can continue signing in to their original application accounts.
Thank you for your assistance.
Topic:
Developer Tools & Services
SubTopic:
Developer Forums
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