The primary conduction of sales is done by selective medium in accordance with the type of business run by an organization. If the organization is based on conducting e-commerce operations, the medium will definitely be internet and email to conduct sales primarily. If the business is via physical retail stores/units, the medium will primarily be face-to-face. Telephonic medium of conducting sales can be done in case of business-to-business sales. This is because the organization selling its products and/or services to another business will already know the members of the organization to which the products and/or services are sold to.