Specifies how Integration Server processes the documents in the trigger queue.

Specify that Integration Server should process documents in the trigger queue one after the other, in the same order that they were received.

Specifies that Integration Server should process as many documents in the trigger queue as it can at one time. The maximum number of documents the server can process at one time is determined by the Max execution threads property.

Specifies the maximum number of server threads that can process documents for this trigger concurrently. Integration Server uses one server thread to process each document in the trigger queue. The default is 1 server thread.