Small BusinessOperations
What is a SKU number? How you can use it for inventory management
Nov 7, 2025
A stock-keeping unit (SKU) is a unique identifier of numbers and letters that retailers assign to a business’s product to help manage and track inventory. Businesses typically use them internally to capture data about products, match inventory with customer needs, speed up the checkout process, and more.
4 mins readAuthorPayPal Editorial Staff