Handling replies includes using a sender copy message
to obtain a reply, finding the job that sent a reply, using the system reply
list, and using reply handling exit programs.
Using a sender copy message to obtain a reply
When an inquiry message is sent, it expects a reply. To allow the
sender of an inquiry message to obtain a reply, a sender copy message is issued
and associated internally with the inquiry message.
Finding the job that sent the reply
Occasionally you might want to know the job that replied to an
inquiry message on various standard message queues.
Using the system reply list
By using the system reply list, you can specify that the system
automatically issues the reply to specified predefined inquiry messages.
Using the reply handling exit program
By using the reply handling exit program, a user-supplied
exit program can be called when a reply is sent to an inquiry message.