Removed UID(0) (super user) from the OMWEB task. After doing this, OMWEB failed with the following abend.
Abend USER COMPLETION CODE=4093 REASON CODE=00000228.
Checking the Broadcom manual, it explains,
Missing OMVS segment in the external security package (RACF, TSS or ACF2)... The userid of the OPSLOG WebView started task must have an OMVS segment in the security profile....
The task did have an OMVS segment; however; UID(0) was removed and replaced with a generic UID number using the AUTOUID parm on the ACF2 change command.
The main filesystem was owned by an orphaned user