Not all built-in exceptions can be chosen in the ProxySG appliance VPM.
Article ID: 168960
Data Center Security Monitoring Edition
ProxySG Software - SGOS
The list of visible exceptions in the "Add Exception Object" is now limited to:
Workaroundit is still possible to copy the built-in system exception
and install it as a user-defined exception
and then refer to this user-defined exception in the VPM.
Or you can write the policy in CPL.
CPL won't prevent you from selecting any of the built-in exceptions