...
In the figure above, the delay property is set to 1 (one) second. If the delay is configured to be greater than 0 then the trigger for output will be delayed until the KPI Management agent receives a timestamp that exceeds the end of the period with the added delay. This property is used to prevent that periods are closed too early due to late arriving data. The default value of this property is 0 (zero). For further information about how to set the delay property, see 4.3 KPI Agent.
Processed KPIs will be flushed automatically when you close a workflow.
...