DB00605E - CONSOLE BAD CONTEXT error after MESSAGE DD@MSG command

Products

• Datacom/AD
• Datacom
• Datacom/DB
• DATACOM - AD

Issue/Introduction

The Datacom console command "MESSAGE DD@MSG,DB00148" gets the following error message:

DB00605E - CONSOLE BAD CONTEXT - MESSAGE DD@MSG,DB00148

no matter how it's executed (MVS Modify command or via DBUTLTY COMM OPTION=CONSOLE).

Environment

Release : 15.1

Component : Datacom/AD

Resolution

In order to use that console command, the DD@MSG SYSOUT dataset must be already allocated to MUF. 
However, this sysout is allocated ONLY if there is at least a:
MESSAGE DD@MSG,DBnnnnn
card in the SYSIN deck when the MUF starts.