Glossary
SKU
Definition
The SKU (stock keeping unit) is the internal code a company uses to identify each distinct product it sells. A different size or color usually has its own SKU.
Unlike the GTIN, which is a global standard, each company defines its SKUs its own way.
In a catalog, the SKU is the key that links information across systems: the ERP, the PIM, the store and the marketplaces talk about the same product thanks to it. That is why it should never change.
Related terms
- GTIN (EAN and UPC)
The GTIN is the global number that identifies a trade item, the one printed in the barcode. It is built from a company prefix issued by GS1, and EAN-13 and UPC-A codes are forms of GTIN.
- Parent SKU (configurable product)
A parent SKU groups the variants of the same product. It is not sold on its own: it holds the shared information and lets the buyer choose the size, color or version.
- Product variant
A variant is a version of the same product that changes along one or more axes, such as size, color or capacity. Each variant has its own SKU and shares most of the product record with the others.
Try it with your catalog
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