Gartner defines marketplace operation applications (MOAs) as technology that enables organizations to operate marketplaces selling third-party products alongside optional first-party products. MOAs allow organizations to manage seller onboarding, product catalogs, promotions, orders and finance, to monitor business performance to ensure compelling customer experience, and to support the selling of physical goods, services or digital goods. MOAs can be deployed on-premises, as single-tenant SaaS or as multitenant SaaS.