I found it!!! This Engineer answered this guy with the same question... just took me a few days to discover this thread... https://developer.apple.com/forums/thread/767387

Here's a simplified version of the code I'm trying to use... // Define a custom notification name. extension Notification.Name { static let timelineDidFinish = Notification.Name("timelineDidFinish") } struct ContentView: View { var body: some View { Text("Listening for Notification...") .onReceive(NotificationCenter.default.publisher(for: .timelineDidFinish)) { notification in print("I hear the notification") } } }

I keep trying new things but if I just can't get RC Pro to send a notification (or I Xcode won't receive it). I'm super limited in what I can do with this project. If anyone can help, I would greatly appreciate it.