So I created the tags, the element and the Notification. The tags for the element's attributes exist and the element is linked to them. The Notification is unable to start, producing "Error: Could not start the notification: Failed to create point on server. [-10401] No Write Acess - Secure Object(FatalError)".
There is a trust between the development PI Archive server and the Development PI Notifications program (PINotificationsHistoryProvider.exe) running on the development AF Server as user 'piadmin'.
I can't figure out why the Notification can't create the tags it needs to.
Anybody have any ideas ?