Which documents show the OPN?
The OPN is shown on the Barcode Packing Label in the 2D barcode and it is shown in the type list of PCNs, PDs and Infonotes.
If you use the OPN as your Customer Part Number (You order with a part number different from the SP number) then the OPN is shown on all documents that currently display the CPN: Invoice, Packing List, Order Confirmation, Debit&Credit Notes, Dispatch Note etc.