Small BusinessOperations
SKU Number: A Simple Guide to Inventory Management
Oct 16, 2026
A SKU (stock-keeping unit) number is a unique alphanumeric code that businesses create internally to identify, track, and manage individual products in their inventory. Unlike universal product codes, SKUs are custom-built by each business to reflect their specific product catalog — making them one of the most flexible and powerful tools in day-to-day inventory management.
6 mins readAuthorPayPal Editorial Staff