Use this dialog box to remove old customer order records from the database. It is possible to remove customer order header history, closed customer order lines, customer order line history, customer order line reservations, and customer order line delivery records. When removing the line history for closed customer order lines, the reservations and delivery records will also be deleted. You can either perform a cleanup of customer orders directly, or schedule the task as a background job.
Cleanup Sales Data
Scheduling in Manage Customer Order
Scheduling in Shipment