Currently, if a Customer or Supplier Invoice is reprinted, we indicate it as such by adding the COPY phrase just before the printed document title, e.g. COPY INVOICE, or COPY SUPPLIERS INVOICE
However, the same is not possible for printed Purchase Orders.
The client requires the same feature for Purchase orders as they need to control if a PO has been reprinted. Therefore, if a PO is reprinted, the printed document's title should be displayed as COPY PURCHASE ORDER.