What is an SKU (Stock Keeping Unit)?
An SKU (Stock Keeping Unit) is a unique alphanumeric code assigned to a specific product to track inventory and sales. Unlike UPC (Universal Product Code) barcodes, SKUs are internal to your business, allowing you to create codes that represent product attributes like size, color, or material.
Benefits of Using SKUs
- Improved Inventory Accuracy: Quickly identify exactly which version of a product is in stock or sold.
- Optimized Fulfillment: Help warehouse staff pick and pack orders more efficiently by using descriptive codes.
- Sales Analytics: Track which product variations (like "Large Blue T-Shirt") are performing best.
- Channel Management: Standardize product identifiers across Shopify, Amazon, and physical stores.
How to Create a Good SKU System
A smart SKU system should be consistent and descriptive. Avoid using letters that look like numbers (like 'O' and '0' or 'I' and '1'). Place the most important information first (like the Brand or Category) followed by specific attributes.
Our completely free SKU Generator allows you to build a matrix of product variants and automatically generate clean, copyable codes for your entire catalog in seconds.