Message is a means of communication between system and user. These are system messages & User Message.
System Messages and Users Messages are put in the user’s message queue. Messages may be
a) Informational (No reply Needed)
b) Inquiry (Reply Needed)
Even users can send messages to each other using following commands,
1. SNDBRKMSG (Break messages is used to interrupt the user’s work)
2. SNDMSG (F4)
TOUSR(< user profile >
TOMSGQ(< Workstation name >
By default every message given to the administrator goes into QSYSOPR message queue. Administrator can change this default message queue.
To see the messages of any message queue use following command,
DSPMSG
To check system operators message queue use,
DSPMSG QSYSOPR