Manager reports permission error "You do not have sufficient permissions to view data in the category 'xxx' when attempting to view custom tab within Resources & Groups | System entitlements menu for Active Directory group system entitlements. The problem happens to the Active Directory entries in the System entitlements section. But custom tab displays correctly when the same System entitlement is selected via the Resources & Groups | Active Directory groups menu. UNS group works fine as well.
The UNSGroup table has been extended (e.g. “xxx” column) and the same has been done on the ADSGroup table. But the mapping between both extended columns are missing. This leads to the noticed behavior (permission error):
The custom field can be displayed when opening ADSGroup directly within Manager - because the object from the table ADSGroup is accessed directly. When opening an ADSGroup as a “System entitlement”, the column from the UNSGroup table cannot be accessed because the "proxy" column has not been mapped.