Stock Keeping Unit (SKU)
Also known as: SKU
A stock keeping unit (SKU) is a unique identifier for a distinct product or item, used to track inventory and sales precisely.
Each SKU represents a specific variant of a product — a particular size, colour, pack or specification — so it can be counted, ordered and priced individually. SKUs are the granular building blocks of catalogues and inventory systems, distinct from broader product groupings.
The breadth of a catalogue is often measured in SKUs. A large marketplace carries an enormous range — Lapasar's platform lists more than 2 million SKUs across categories — so buyers can find precise items rather than approximate substitutes.
Frequently asked questions
- What is a SKU?
- A stock keeping unit (SKU) is a unique identifier for a specific product variant — a particular size, colour or specification — used to track inventory, orders and sales precisely.
- What is the difference between a SKU and a product?
- A product can have many SKUs. Each SKU is a distinct variant — for example, one shirt product might have separate SKUs for each size and colour combination.
Related terms
Catalogue (Catalog)
A procurement catalogue is a curated, priced list of goods and services from approved suppliers that buyers can order from directly.
Read definitionB2B Marketplace
A B2B marketplace is an online platform where businesses buy goods and services from many suppliers through a single account, catalogue and checkout.
Read definitionSafety Stock
Safety stock is extra inventory held as a buffer to protect against unexpected demand spikes or supply delays.
Read definitionExplore related across the knowledge graph
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