Question:

How to restrict users to use desktop of a delivery group

Answer:

This is applicable to all versions of Citrix Virtual Apps and Desktops.

1. Run Get-BrokerEntitlementPolicyRule
2. Get the delivery group name from the output
3. Run  Set-BrokerEntitlementPolicyRule - Name "My Delivery Group_1" -AddIncludedUsers "MyDomain\DesktopAccessGroup" -IncludedUserFilterEnabled $true

*Add users whom you want to give the access in the above command

Note: In newer versions of Studio, right-click Delivery Group, go to Desktops page, and edit one.

We can also exclude the users by using exclude filter.

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