@DTS Engineer Thank you for the clarification and further reading this is helpful. I'm curious about other files that might be stored elsewhere not using the app group? For example will we also lose access to data stored using FileManager.default.urls(for: .applicationSupportDirectory, in: .userDomainMask)?

@DTS Engineer I've been reviewing a few of these posts in relation to iOS specifically. We use the FileManager method containerURL(forSecurityApplicationGroupIdentifier groupIdentifier: String). What happens to the files that are stored at the url this method returns when I transfer my iOS app. Will i still be able to access them after the transfer completes? I've seen other comments that they had to remove the app group from the original owners account & recreate it in the receiving account.