This attribute is an alphanumeric code and identifies a product within your manufacturer's product range.
Correct usage of this item depends on your target country. If you need further information about your target country refer to the Unique Product Identifier Rules. The Manufacturer Part Number (MPN) is recommended and has to be unique.
Type: Alphanumeric characters
Only the Manufacturer Part Number that was assigned by the manufacturer is permitted. The Manufacturer Part Number is recommended and has to be unique. In case you have products in different colors use unique MPNs for every color.