Not all Amazon items have the MPN listed or the UPC. So how do we find the information then?
EAN – International Article Number (formerly European Article Number)
Site gives 10 free conversions a day or register for more
http://www.upcbarcodes.com/dashboard/asin-gtin-converter/
Depending on what category will see different item specifics
Depending on what category will see different item specifics
Depending on what category will see different item specifics