When you are running a user / device license each user that logs on, is assigned a license.
This license is automatically revoked after that user has not logged on into the system.
However sometimes you may manually need to revoke a license if you run out.
running this command from your license server will give you the following output
“C:\Program Files (x86)\Citrix\Licensing\LS\udadmin.exe” -list -a
Usage data is 14 minutes old. Next update in 2 minutes.
Feature : XDT_ENT_UDInstalled: 10 Installed Overdraft : 0In Use : 10 Users: 10 Devices: 0
Version : 2012.1031 Installed: 10 Installed Overdraft : 0 In Use : 10 Users: 10 Devices: 0 Users: administrator user1 user2 user3 user4 user5 user6 user7 user8 user9
Feature : XDT_PLT_UDInstalled: 10 Installed Overdraft : 0In Use : 0 Users: 0 Devices: 0
Version : 2012.1031 Installed: 10 Installed Overdraft : 0 In Use : 0 Users: 0 Devices: 0
Feature : XDT_STD_UDInstalled: 10 Installed Overdraft : 0In Use : 0 Users: 0 Devices: 0
Version : 2012.1031 Installed: 10 Installed Overdraft : 0 In Use : 0 Users: 0 Devices: 0
To revoke a license use the following command, the -f feature has to be replaced according the which license you are using above
“C:\Program Files (x86)\Citrix\Licensing\LS\udadmin.exe” -f XDT_ENT_UD -user administrator -delete
Deletion Successful.
you have to do this step for each user you want to revoke.