CNZ_WTOMDBEXIT receives control from the system for each single-line WTO, multi-line WTO, or WTOR. Every single-line message that is sent by WTO or WTOR will be passed to the exit routines active at the exit point. Multi-line messages will be presented only when all lines have been completed. For example, a multi-line message with 1 major and 3 minor lines will result in the exit routine receiving control one time.

Code a CNZ_WTOMDBEXIT exit routine when you want to view all messages being sent by WTO or WTOR. Information in the message is read-only; you cannot modify the message contents.

See z/OS MVS Installation Exits for a detailed description of the CNZ_WTOMDBEXIT installation exit and a sample exit.