USERMSGS= parameter for procedures
Use the USERMSGS=N|Y parameter in procedure to specify whether (Y) or not (N) the user-supplied user message tables module DFSCMTU0 is to be loaded by IMS.
The default is N.
The user message tables module must be placed in an authorized library in the JOBLIB, STEPLIB, or LINKLIST library concatenated in front of the IMS.SDFSRESL.