You can change the behavior that is taken by your message flows to process messages in different ways and at different times.
If one or more of the default behaviors that are described in Default message flow behavior is not sufficient or appropriate for your message processing, you can change some characteristics of that behavior at different times during the design, development, and production cycles:
The nodes that support some protocols provide extra default error handling; this support is described, where relevant, in the sections in Connecting client applications.
You can change these values by using the IBM Integration Toolkit, or the mqsiapplybaroverride command.
Learn more about this option in Configurable services.