A SKU number is a unique identifier for a single product.
No two products can share a single SKU number. SKU stands for "Shop-Keeping Unit".
How is it used?
Typically a SKU number is used to create a barcoded price tag, or to look up products internally in your store.
A SKU number gets you straight to a particular product so you can quickly and easily make updates.
Shopventory gives you the ability to generate a SKU number with the very universal UPC-A format (12 digits).