IBM-supplied defaults for message management

If you have msgid (message processing) statements in the MPFLSTxx member, the defaults vary and are described in the syntax and parameter descriptions for the msgid , .DEFAULT, and .NO_ENTRY statements.
If you do not specify an MPFLSTxx member, the defaults are AUTO(YES), RETAIN(YES), and SUP(NO). The system considers all messages eligible for automation processing, it retains action messages, and displays all messages.