We are unable to verify the status from the old team account because it is no longer accessible. However, since the apps we manage are visible under the new team account, we believe the transfer process was completed successfully. In this state, when we attempt to upload the app, we encounter the error mentioned above. Could you please advise on what might be causing this issue or how we can resolve it?

Follow-up (this issue is blocking our release): We would like to ask for guidance again as we are currently blocked by this issue. Additional clarification: The app is already fully transferred to the new Team The app is no longer visible in the old Team A completely new archive was created after transfer All certificates and provisioning profiles are recreated under the new Team The app is signed correctly with the new Team ID However, uploading still fails with ITMS-90076 (Team ID mismatch), and we cannot proceed with submission. At this point, it seems likely that the issue is not related to code signing configuration, but rather an internal App Store state inconsistency after App Transfer. We would really appreciate any insights from Apple engineers or anyone who has experienced the same issue. Is there any known workaround or required backend refresh after App Transfer? Thank you very much.