What is SKU?

Detailed Explanation

SKU (Stock Keeping Unit) is a unique alphanumeric code assigned to each distinct product and its variants (size, color, pack size) for inventory tracking purposes. Unlike ASINs which are Amazon-specific, SKUs are created by sellers and used across all sales channels. A well-structured SKU system helps with inventory management, sales tracking, and warehouse operations. Best practices include encoding category, brand, size, and color into the SKU format (e.g., SHOE-NK-BLK-42 for Nike black shoes size 42).