A Stock Keeping Unit assigned to a product listed on Amazon uniquely identifies that item within a seller’s inventory. This alphanumeric code, created by the seller, facilitates tracking and managing stock levels. For instance, a seller might assign “TSHIRT-BLK-S” to a black t-shirt, size small, to differentiate it from other variations.
The implementation of these identifiers streamlines inventory control, reduces fulfillment errors, and enhances reporting capabilities. Accurately utilizing these codes allows sellers to quickly locate items in a warehouse, analyze sales data for specific product variations, and reconcile shipments. The practice evolved from basic stock management techniques to a sophisticated data-driven approach for large-scale e-commerce operations.