Use a dynamic MQSeries target definition in a mapping when you want to write data dynamically to the message header fields in the WebSphere MQ target. When you use a dynamic MQSeries target definition in a mapping, you can write binary or XML data to the message data field in the message. If the message data is flat file, use a static WebSphere MQ target definition.
The PowerCenter Integration Service can maintain transactional consistency when writing binary and XML data to WebSphere MQ targets. The PowerCenter Integration Service commits messages to WebSphere MQ targets in groups for each transaction you define based on the commit interval. If the session fails or aborts during the transaction, the PowerCenter Integration Service does not commit any data to the targets for that transaction.