Hi guys.
I don't think you don't need to automatize this. At least out of the box. By default the device status will become ACTIVATED after a successful registration/authentication/authorization process went through. Besides that, if you have specific requirements/use cases, where you had to change the registration endpoints, you may want to automatize that. This is possible by either changing the status through the database (more like a hammer down approach - not elegant neither recommended), or you could open your MAG Manager and inspect the endpoints being called when you change the device's status.