Value Stream Maps Event Collector
Value stream maps includes a built-in event collector which follows your work item throughout its lifecycle.
When you enable field history tracking, the event collector creates an event utilizing a custom object for every change that takes place in the object and primary field selected for the value stream map. As a result, metrics are generated so that you can track Lead Time, % C/A and any other custom metrics.
When you create and activate a value stream map, if you set a start date in the past, Copado utilizes data from field history tracking to calculate the metrics related to your Value Stream Map. For current and future events, Copado creates a scheduled job that runs every hour. A recalculation button will also execute the job if data needs to be refreshed before the scheduled job runs.