Workflow Event definition.
TriggerBusinessEvent triggers a specified business event and the workflow routings that are associated with that event. This is the syntax: See also here
TriggerBusinessEvent (BUSPROCESS.BusProcName BUSACTIVITY.ActivityName BUSEVENT.BusEventName)
The BusProcName ActivityName and BusEventName parameters are the names of the business process activity and event from PeopleSoft Application Designer.