SKU (Stock Keeping Unit)
A SKU (Stock Keeping Unit) is a seller's internal code for a distinct product variant, used to track inventory and fulfill orders. Unlike a GTIN, which is globally unique, a SKU is defined by each company, so the same item can have different SKUs at the buyer and the supplier. Mapping between them is essential.
SKU versus GTIN
A SKU is internal and seller-defined; a GTIN is global and standardized. A retailer's SKU, a distributor's SKU, and the manufacturer's GTIN can all point to the same physical item, which is why orders need a cross-reference to match lines correctly across partners.
SKUs in order matching
When an order arrives with the buyer's part number, the supplier's system has to map it to its own SKU. A missing or wrong mapping fails the line and stalls the order. Maintaining a customer-item cross-reference is what makes automated order matching work.
Related Terms
Frequently Asked Questions
SKU stands for Stock Keeping Unit, a company's internal code for a distinct product or variant used to track inventory and fulfill orders.
A SKU is an internal, company-specific code. A UPC is a globally unique barcode number, a form of GTIN. The same item has one UPC but can have different SKUs at each company.
Automate every order format
OrderSync processes EDI, PDF, email, and fax orders into your ERP with AI extraction and validation. No VAN middleware.