Seller Acquisition and Merchant Onboarding: The Key to Expanding Your E-commerce Business Sales Outsourcing is the transfer of responsibility of the business sales process to an outside company to develop a dedicated sales team to represent a product or solution directly to the customer of the organization. The Sales Outsourcing company will have the responsibility of hiring, training, and managing the sales team as if they were an extension of your organization and presenting themselves as your brand to the customer.