A Stock Keeping Unit (SKU) is a unique identifier used in inventory management to distinguish and track individual products or items within a store or warehouse. SKUs are typically alphanumeric codes assigned to specific products to facilitate efficient inventory management, stock control, and sales tracking. Each SKU represents a specific variation of a product, such as different sizes, colors, or models. By using SKUs, businesses can accurately monitor inventory levels, track product movement, streamline order fulfillment, and analyze sales data. SKUs play a crucial role in improving operational efficiency and providing valuable insights for businesses in managing their inventory effectively.