Service Order Service Order use case is used to add a proof of service (POS) for an existing R&PO in CCPOR. If the order exists in DOJ CARPOS then CCPOR will add (optional) the POS in CARPOS. Cancel Order The Cancel Order use case is used to cancel R&PO in CCPOR. The orders can be cancelled for various reasons such as the order is terminated by the court, it was entered by error or the restrained