Level 2 Support explained:
Given that SEC=PARTSAF utilizes our distributed code (security exit)
that is good news in that they won't have a custom security exit.
Therefore SEC=NMSAF will work for them. Also: This is
documented in the manual:
Partial Security Exit PARTSAF Removed
The partial security exit PARTSAF has been removed. If you previously
used PARTSAF use the security exit NMSAF instead. For details about
NMSAF see the Security section in the Shared Content Library.