E-commerce operator defined as platform owner facilitating supplies; sellers on their own account are excluded. An electronic commerce operator is any person who directly or indirectly owns, operates or manages an electronic platform that facilitates the supply of goods or services, including those providing information or incidental services in connection with such supplies; a person supplying goods or services on their own account through a platform is excluded, distinguishing marketplace/fulfillment models from inventory models and excluding platform activity when the platform itself supplies on its own account.