Business object requests are processed when InterChange Server sends a business object to the connector. Using the XML data handler, the connector converts the business object to an MQ Workflow WfMessage formatted message and issues it to MQ Workflow.
The WfMessage contains the business object and processing information, and is encapsulated in an MQ Message with an MQ Message Descriptor (MQMD) header. The MQMD header contains a UserID field that the connector populates. (By default, the connector passes the value of the connector configuration property ApplicationUserID.) MQ Workflow uses the UserID field in the MQMD header of the MQ Message to perform authorization checks on any requests sent by the connector.