Hi Sultan_95, Thanks for the suggestion! I did consider that approach, but since the identifiers are already marked as “not available” and the app was transferred, it seems they are still reserved in Apple’s backend. My understanding is that this might require Apple to reassign the extension App IDs internally. Have you actually tried this approach yourself in a similar app transfer scenario, or is it more of an assumption based on how it should work? Would really appreciate your insight!

Thanks for the suggestion! I did consider that approach, but since the identifiers are already marked as “not available” and the app was transferred, it seems they are still reserved in Apple’s backend. My understanding is that this might require Apple to reassign the extension App IDs internally. Have you actually tried this approach yourself in a similar app transfer scenario, or is it more of an assumption based on how it should work? Would really appreciate your insight!