Hi Divya,
A stock keeping unit (SKU) is an alphanumeric code that identifies a product and helps you track inventory for your retail business. You can create SKU numbers manually or using inventory management or point-of-sale (POS) software. SKU numbers print on your product label along with the product’s universal product code (UPC) and other product information.
SKUs help you track products in an inventory management system, but that’s not all. SKUs improve the shopping experience by streamlining checkout. They can also help boost profits by eliminating human inventory errors and providing data to make informed merchandise purchases.
Thanks