Commercial Invoice - International MC Shipment


Amazon Customer Service indicates that a shipment of a single book was returned by the shipper because it did not have a commercial invoice. We have sent shipments internationally for many years and never had a return. In looking at the MC order page, is there somewhere to add this information to an MC order?


I did not know you could use MCF for international. How would Amazon know the value to put on a customs form?


Shipped overseas since started almost 9 years ago.