An online marketplace is a platform where multiple sellers offer goods or services to customers.
How it works in retail
The operator sets participation rules and may provide payments, discovery, fulfilment or customer support. Some platforms also sell their own inventory alongside third-party offers.
A retail example
Several independent homeware sellers list products on the same platform, which processes customer orders under its marketplace rules.
What to keep in mind
Identify the seller of record, fulfilment provider and return responsibilities. A marketplace listing does not necessarily mean the platform owns the goods.
Examples are illustrative. Terminology and measurement conventions can vary by business and market.