SKU, short for Stock Keeping Unit, is a unique code that is assigned to a product to identify it. It helps you to keep track of your inventory.
You can come up with your own system of assigning SKU's to your products, but make sure you are consistent and make it recognizable.
A good SKU is understandable by humans and includes all specific details about the product, like size and color.
Examples of SKUs:
- A paperback edition of the first book of the Lord of the Rings trilogy could have this SKU: LOTR-1-PB
- A pair of black Nike Pegasus running shoes size 43 could have this SKU: NIKE-PEG-BL-43
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