It’s spelled SKU, by the way, standing for Stock-Keeping Unit and the SKU number means the number that the /store/ assigned to the product (a different number for each inventory item, so if the product comes in a single pack, for example, and a double pack, that’s two different SKU numbers, even if the product inside is the same. They couldn’t have /never/ carried it, or they would never have assigned a SKU number. It could be the UPC (Universal Product Code), which applies everywhere (it’s what is usually coded on the package as a barcode), or it could be the manufacturer’s product number (which stores don’t use for inventory, because many manufacturers might use the same number for different products), but it couldn’t be the SKU.
It’s spelled SKU, by the way, standing for Stock-Keeping Unit and the SKU number means the number that the /store/ assigned to the product (a different number for each inventory item, so if the product comes in a single pack, for example, and a double pack, that’s two different SKU numbers, even if the product inside is the same. They couldn’t have /never/ carried it, or they would never have assigned a SKU number. It could be the UPC (Universal Product Code), which applies everywhere (it’s what is usually coded on the package as a barcode), or it could be the manufacturer’s product number (which stores don’t use for inventory, because many manufacturers might use the same number for different products), but it couldn’t be the SKU.