When Control-M for z/OS submits a job that has no MSGCLASS coded, and parameter MSGCPRES is set to Y, where is the MSGCLASS taken from?


 

When MSGCPRES is set to Y, the following JCL is added to the job at submission time.

//DEFAULT OUTPUT JESDS=ALL,CLASS=*
//JESDS   OUTPUT JESDS=ALL,CLASS=X

The DEFAULT card is used to preserve the original MSGCLASS.
The JESDS card is used to preserve the Control-M MSGCLASS taken from parameter HLDCLAS.

Article number 000058116 shows how to change these two cards if required.

If a job is submitted by Control-M that has not MSGCLASS present, then the MSGCLASS is taken from the INTRDR DD card in the Control-M monitor JCL for example:

XXINTRDR   DD SYSOUT=(&OUTRDR,INTRDR)        
IEFC653I SUBSTITUTION JCL - SYSOUT=(X,INTRDR)

In the example above the MSGCLASS is set to X.

The MSGCPRES  and HLDCLAS parameters can be found in member CTMPARM in the IOA.PARM library.