Coupled with the object access security on the user level that defines which sites, groups, devices, and websites a user may access, roles comprise part of the Barracuda RMM security model.
Example
You can create a restricted Administrator role that is limited to specific objects. If you clear the Automatically Assign New Sites check box in the Permissions tab, then users who have this role are not given access to new sites as they are added. You can also exclude the notifications.