If you have not successfully deleted objects during OSMC in the past, or you have just moved to a new release of OAM, a good place to start is by examining the Auto-Delete Installation Exit, CBRHADUX. To allow objects to be deleted during OSMC processing, perform the following steps:
CBRHADUX returns with a return code 12 if the exit cannot dynamically allocate the group X.OBJECT.DELETE.NOTIFY data set. Check the syslog for CBR, IGD or IEF messages following the start of OSMC processing for the storage group.
For more information on the CBRHADUX installation exit, see Auto-delete installation exit (CBRHADUX).