- A stockholding unit (SKU) is a scannable code that helps merchants automatically track stock movements.
- SKUs are often displayed as barcodes or QR codes.
- Each item, along with its place of sale, will have its own unique SKU (but not to be confused with UPC barcodes)
- SKUs help suppliers determine which products require reordering and provide sales data.
- SKUs are also used for repair time units, services and warranties.