Sales is a contract involving transfer of the possession and ownership (title) of a good or property, or the entitlement to a service, in exchange for money or value. Essential elements that must be present in a valid sale are (1) competence of both the buyer and seller to enter into a contract, (2) mutual agreement on the terms of exchange, (3) a thing capable of being transferred, and (4) a consideration in money (or its equivalent) paid or promised.
Marketing The management process through which goods and services move from concept to the customer. It includes the coordination of four elements called the 4 P's of marketing:
(1) identification, selection and development of a product,
(2) determination of its price,
(3) selection of a distribution channel to reach the customer's place, and
(4) development and implementation of a promotional strategy.