CASMQ1018E Unexpected MQ message structid mqtm-strucid in IMS Trigger Monitor

The IMS WebSphere MQ Trigger Monitor program (CSQ4TRMN) was expecting a message with mqtm strucid of (MQTM-STRUC-ID) but received an unexpected mqtm strucid.
System Action:
Trigger transaction will not be started.
Resolution:
Check the WebSphere MQ Process definition.
Module:
csq4trmn
Destination:
Console