Data Archive handles Oracle Workflow in three entities:
Items
Items are archived and purged along with all associated processes and notifications. An item is not purged if any item associated with its parent item is open.
Activities
Activities are archived and purged when they are obsolete versions that are no longer used by any item.
User Roles
User Roles archives and purges users and roles whose expiration date has passed and are not referenced in any notification.
To properly archive and purge all three entities, the Items Entity must run to completion before the activities and user roles entities run.