Blocking transaction processing
Use this property to indicate whether the connector should call an external method, which is created by the user and provided in a shared library, for each input message to determine if it is a blocking transaction message.
A blocking transaction message is the source queue message that the connector must write to the work queue, release down the output link, and wait for the job to process it and remove it from the work queue before fetching the next message from the source queue.
The default value is No.
This property is available only if you set the Message read mode property to Move to work queue.