The above log message is displayed when an outbound MQ destination on a gateway does not expect any reply:
Also, please use HTTP Header, JMS type will not work for MQ headers.
Could you please describe your use case in more details? E.g.
- do you expect a response form a back-end server?
- what kind of reply is expected?
- what is required from a gateway (e.g. does the gateway listen on MQ destination, does it modify any request/response)?