In the Title Edition record the Vendor codes tab stores the vendor code(s) for your products. A vendor code is a unique code; other than the ISBN, used by a vendor to identify your product in sales reports. Though many companies will use your product code; the ISBN or SKU, some companies use their own code.
Amazon will often use an ASIN; Amazon Stock Identification Number, to identify eBooks. The ASIN for the eBook edition of Royalty Accounting is B0074AOJR4.
The Vendor codes tab is where you link the vendor’s company specific code to the ISBN field used by EasyRoyalties. When sales are imported from a specified vendor the software will link their code to the unique identifier; ISBN, used by EasyRoyalties.
The vendor code; for a single vendor, can be loaded in the Title Edition record’s SKU field if the field is not used as a secondary identifier for the product.