You can use the DISPLAY MPF command to list the results of the
current MPFLSTxx member. The DISPLAY MPF command displays:
- The messages being suppressed by MPF.
- The action messages that are not being retained by the
action message retention facility.
- The installation exits that receive control for selected messages.
- The status of the general-use WTO installation exit, IEAVMXIT.
For descriptions of the DISPLAY command, see z/OS MVS System Commands.
Note: The DISPLAY MPF command will not display if a message is eligible
for automation processing. The hard-copy log, however, will contain
the automation tracking indicator.
To diagnose MPF processing, you can also use the hard-copy log
to determine the message processing options used for a message.