Online Services User
The Online Service User (OSU) is an online service that enables your patients to access and book online appointments without going through the full online registration process. Details on how to enable this services can be found at Management Tools - Control Panel.
If a patient has registered as an Online Service User (OSU), their Registration - Online Services tab displays Global and Appointments options only:
Registration - Online Services tab OSU registered user
You can disable patient access by removing the tick at any time should the account be misused or be felt to be inappropriate.