Hello, We have an application that was recently transferred to another team. The original team had the entitlement for the default mail client. We requested the same entitlement for the new team; however, we have yet to receive it after four months. Yesterday, we released an app update without the entitlement. I would like to inquire about how the application will behave for users who have set it as their default mail client. Will there be any issues for those users, or for any other users, moving forward? Thank you.

We recently transferred two applications to a different account, both of which utilize Keychain and shared app containers. Before transferring the first application, we anticipated losing access to the Keychain and took proactive measures by backing up data to the app’s private container in the final release prior to the transfer. During the app transfer process, we removed the shared container group ID from the old account and recreated it under the new account. In our testing, Keychain restoration from the local backup was successful, and users experienced no disruptions. However, after releasing the application, we observed that approximately 25% of our users not only lost their Keychain data as expected but also their shared app container data. As we have been unable to reproduce this issue internally, we are seeking your guidance on how to prevent a similar situation when transferring our second application. At this stage, we have not yet released any updates from the new account, and the Keychain data remains backed up in the app’s private container. We would appreciate any insights or recommendations you can provide to ensure a smooth transition for our users and make sure we can keep the data in shared container.