The IMS message table as provided in CAX1MAC2(ACFDCMSG)
For the logon process the messages are prefixed with ACF and for this/these processes the IMS message table is used and DFSU prefixed messages are displayed
The messages displayed in the control region joblog (and syslog) for a transaction violation are
ACFDC040 LOGONID USER01 SOURCE SSSSSSSS ACCESS TO TRANSACT WHO IS DENIED SYSX
ACF04056 ACCESS TO RESOURCE WHO TYPE RITT BY USER01 NOT AUTHORIZED IMI1
but the message the user receives is
DFSU901 15:47:36 ACF2/IMS: SECURITY VIOLATION
Can these messages be displayed for any other sort of violation?
Release : 16.0
Use the resource post validation exit and pass-back whatever message you want.
We do provide a sample in the CAX1MAC2 member.
Not sure if you can change the message but you can get the message being returned.