Create a static WebSphere MQ target definition when you write flat file data to a WebSphere MQ message data field. The PowerCenter Integration Service writes data to the message data field in the message from the pipeline. It does not write any data to the message header fields in the message. Because the data is flat file, create a flat file target definition as the static WebSphere MQ target definition.

If you configure WebSphere MQ sessions for MQ targets with file writer connection and Target Based Commit, the number of messages committed to MQ targets and number of rows per message might vary.

If you want to write COBOL data to a message queue, use a VSAM target definition as the static WebSphere MQ target definition.

The message header fields in the MQ Source Qualifier are not projected to any port in the target definition. Since you are not writing data to the message header fields, the message header fields in the WebSphere MQ target remain static. The target definition only receives data from the Normalizer Source Qualifier.