I am trying to add CloudKit sharing to my app using the new iOS 15 share method  https://developer.apple.com/documentation/coredata/nspersistentcloudkitcontainer/3746834-sharemanagedobjects In the app there are 3 core data entities (Folder, Item, Comment) with the following relationships: A Folder contains many Items An Item has many Comments I want to use CloudKit to share just the Item entity, not any of its relationships. Is this possible to do with the share(_:to:completion:) method? Currently, when I pass an Item to the share method it also includes the Folder and Comments in the CKShare. How do I prevent this? A similar question was posted here with no response: https://developer.apple.com/forums/thread/697630

I use NSPersistentCloudKitContainer to synchronize data between iOS and macOS. After installing the app, it takes long (sometimes up to an hour) for all data to become available. Related to this, I have a few questions: Synchronization seems only to take place when the app runs in the foreground. Is there a way to keep the app synchronizing when it is brought to the background? I have enabled remote notifications and use registerForRemoteNotifications in my app delegate (via UIApplicationDelegateAdaptor). I haven't yet experimented with background processing. Should I do that, and can you point me to some references? Is there a way to check whether the local-stored data matches what's available on the server? E.g. checking whether a (local-stored) NSPersistentHistoryToken matches the latest NSPersistentHistoryToken on the server. Internally NSPersistentCloudKitContainer knows, as I can see log events popping up saying that there are no new data to mirror. I would like to know this to inform the user that synchronization still takes place. Currently, users are complaining about missing data, which is just not available yet. Thanks!