This seems to work in XCode 13.2.1 https://twitter.com/SufiyanYasa/status/1488787930722144256

One possibility that i tried before is to extend the extension processing time by wrapping it with performExpiringActivity. let processinfo = ProcessInfo() processinfo.performExpiringActivity(withReason: "Allow CoreData to sync") { [weak self] (expired) in if (!expired) { self?.saveViewContext() } } In my logs - I do see cloudkit+coredata successfully sync from a share extension