Symptoms

In K2 Workspace it is possible to subscribe to workflow events through the custom event designer by selecting workflow as an event source. In cases when it is necessary to create subscriptions for multiple default Client Events (e.g. defaultClientEvent.OnEventCompleted) and subsequently call methods for processing of those events it is inconvenient/unacceptable to do so via GUI and K2 API for this may be necessary.
 

Diagnoses

Unfortunately at the moment there is no OOTB API which can be used for this.
 

Resolution

There is an existing feature request for this.