After migrating from v11.5 to v12, we are having the following error when submitting XCOMJOB:
XCOMM0893E UNABLE TO INITIALIZE ZIIP PROCESSING, RETURN CODE=08 REASON CODE=12
XCOMM0908I zIIP PROCESSING IS NOT AVAILABLE
Return Code 8, with a Reason Code of 12 means that the XCOMJOB is not APF authorized.
System z Integrated Information Processor (zIIP)
zIIP processing requires APF authorization. Run XCOMJOB as APF authorized to be able to use the zIIP.