public void Complete(AbstractUserContext userContext, string externalEntityInvocationId)
{
ORM <ExternalInvocationEntity> externalInvocationEntityOrm = new ORM <ExternalInvocationEntity>();
ExternalInvocationEntity externalInvocationEntity = externalInvocationEntityOrm.Fetch(externalEntityInvocationId);
// Get the flow engine for the flow we'd like to complete
FlowEngine engine = FlowEngine.GetEngine(externalInvocationEntity.FlowTrackingId);
// Call Done to tell the Engine the Step is complete
engine.Done(externalInvocationEntity.FlowTrackingId, externalInvocationEntity.StepTrackingId, new ResultData("Done"));
// Mark the Entity Invocation Completed
externalInvocationEntity.Status = "Completed";
// Store the entity
externalInvocationEntityOrm.Store(externalInvocationEntity);
Log.Warn("Complete Operation Successfully Invoked");
}