# Limit access to groups / UPN

For groups to work the Microsoft Entra application will need [Group.Read.All](https://help.abitsystems.com.au/books/service-scheduler-administration-guide/page/register-entra-application "Register Entra application") permission

[![image.png](https://help.abitsystems.com.au/uploads/images/gallery/2024-11/scaled-1680-/dElimage.png)](https://help.abitsystems.com.au/uploads/images/gallery/2024-11/dElimage.png) Start the Service Scheduler install and upgrade wizard
[![image.png](https://help.abitsystems.com.au/uploads/images/gallery/2024-11/scaled-1680-/9bFimage.png)](https://help.abitsystems.com.au/uploads/images/gallery/2024-11/9bFimage.png) Select settings
[![image.png](https://help.abitsystems.com.au/uploads/images/gallery/2024-11/scaled-1680-/djPimage.png)](https://help.abitsystems.com.au/uploads/images/gallery/2024-11/djPimage.png) Locate the settings sso\_entra\_allow\_groups and sso\_allow\_upn\_suffix
[![image.png](https://help.abitsystems.com.au/uploads/images/gallery/2024-11/scaled-1680-/Vu9image.png)](https://help.abitsystems.com.au/uploads/images/gallery/2024-11/Vu9image.png) To limit access to certain group, add the group names separated by the ";" character.
[![image.png](https://help.abitsystems.com.au/uploads/images/gallery/2024-11/scaled-1680-/nT6image.png)](https://help.abitsystems.com.au/uploads/images/gallery/2024-11/nT6image.png) To limit to user UPN suffix enter the userPrincipalName suffix