MSGCASE

The MSGCASE system initialization parameter specifies how you want the message domains to display mixed case messages.

MSGCASE={MIXED|UPPER}
Messages handled by the CICS message domain and the CPSM message domain are in mixed case.
MIXED
This is the default in the SIT; all messages displayed by the CICS message domain or the CPSM message domain remain in mixed case.
UPPER
The message domain displays all mixed case messages in uppercase only.

Mixed case output is not displayed correctly on Katakana display terminals and printers. Uppercase English characters appear correctly as uppercase English characters, but lowercase appears as Katakana symbols. If you have any Katakana terminals connected to your CICS region, specify MSGCASE=UPPER.

If you want to use uppercase English for your CICS-WebSphere MQ components, you must set MSGCASE=UPPER, and ensure that ASSIGN NATLANGINUSE returns E (US English).