Tracked Workflow events display under the Workflow filter in Audit.

Event codeEvent message
WF-100Task created
WF-101Task started
WF-102Task completed
WF-103 Task opened
WF-104Task cancelled
WF-106Task updated
WF-107 Task rejected
WF-108Task sent back
WF-109Task transferred
WF-110Task sent reminder
WF-1000Workflow template created
WF-1001Workflow template published
WF-1002Draft version added to workflow template and published
WF-1003Workflow template execution started
WF-1004Workflow template execution cancelled
WF-1005Workflow template execution resumed
WF-1006Workflow template execution initiated by end user

The associated object ID for each event is the event code.