An attempt to delete an old Proxy agent out of PAM results in the following error:
Error: PAM-UI-2203: Error deleting proxy. Proxy cannot be deleted because it is in use.
The Proxy agent was configured as one of the selected Proxies in a Windows Proxy target application.
Find the Windows Proxy target applications that have this Proxy agent in the Selected Proxies list and remove it:
Once the Proxy agent is removed from all target applications, you should be able to delete it.
If you have a large number of Windows Proxy target applications, making this manual procedure impractical, Contact Support. Scroll to the bottom of the page and click on your respective region.
PAM Support can help you identify the target applications that still include the old Proxy agent.