I was wondering if anyonr new how to determin if a 11 digit upc number needs
to be turned into a 14 digit number. I receive a EDI file from our
distributor with 11 digit upc numbers and i no how to caculate the check
digit but having no luck trying to detemin if upc number needs to be 14
digits.
Example I know this number 03330071814 needs to be 14 digits cause
00033300718146 is whats on the product.

Can someone maybe shed some light.