A stock-keeping unit is one of the most essential identifiers implemented in the inventory management process. It provides an additional layer of uniqueness besides the name of a product or service. A SKU can be a randomly generated alphanumeric code, or it may consist of a unique company and product code. What is a Stock Keeping Unit (SKU)? SKU (pronounced “skew”), short for stock keeping unit, is used by retailers to identify and track its inventory, or stock. A SKU is a unique code consisting of letters and numbers that identify characteristics about each product, such as manufacturer, brand, style, color, and size. In the field of inventory management, a stock keeping unit ( SKU /ˌɛsˌkeɪˈjuː, ˈsk(j)uː/) is a distinct type of item for sale, such as a product or service, and all attributes associated with the item type that distinguish it from other item types. For a product, these attributes could include manufacturer, description,