SET MSGID command

Controls whether the z/OS® Debugger messages are displayed with the message prefix identifiers. The initial setting is OFF.

Read syntax diagramSkip visual syntax diagramSETMSGIDONOFF;
ON
Displays message identifiers. The first 7 characters of the message contain the EQAnnnn message prefix identifier, then a blank, then the original message text, such as: 'EQA2222 Program does not exist.'
OFF
Displays only the message text.

Example

Specify that message identifiers are suppressed. 
SET MSGID OFF;