If the library supports outboard policy management and if the CUA invocation is for job processing of a scratch volume, UXCJOBP is set on and the UXCEXITI field contains SMS TVRU S->P. Changes to UXCGROUP, UXCLMSC, UXCLMMC, and UXCLMDC are ignored. UXCJOBP indicates that the storage group and other policy names are already set at the library and cannot be changed by the exit at this time.
If the volume resides in a library that does not support outboard policy management, the storage group can be changed even if the UXCEXITI field contains SMS TVRU S->P. In this case, the UXCLOPM and UXCJOBP indicators are off.