a promotion refers to the advancement of an employee's rank or position in a hierarchical structure. In marketing, promotion refers to a different sort of advancement. A sales promotion entails the features—via advertising and/or a discounted price—of a particular product or service.In marketing, promotion refers to any type of marketing communication used to inform or persuade target audiences of the relative merits of a product, service, brand or issue. The aim of promotion is to increase awareness, create interest, generate sales or create brand loyalty.