If you want to restrict users' access in xMatters but still give them enough permissions to add the mobile app to their device, you can assign them the following permissions:
These permissions allow a user to add a device and enable notifications for that device. For example, a function created with these permissions - such as the "Manage Devices Limited" function below - can be added to a custom role to allow users to successfully install the mobile app on their devices.
If you would like to configure custom function or roles, make a support request at support.xmatters.com.
xMatters internal reference: DOC-5998