Disabling enrollment notifications for courses in a specific catalog

unfortunately you cannot disable notificaitons for a course in a certain catalogue. To prevent notifications from going out, you need to exclude those courses from your notification templates everywhere they appear. You can cannot set it so that, for the same course, in different catalogues, only 1 version would go out since the notificaitons are tied to the course not the catalogue it belongs to. That said, if the users that have access to that specific catalogue are excluded from recipient triggers, that might work but you'll need to make sure you dont have another version of the same template that goes out to all users otherwise this will not work. Hope this makes sense 

Understood. I was just thinking if this is possible since there’s no option to disable enrollment for a catalog, and we’ll put all courses needing notifications off into a certain catalog.