sales promotion

public relations and/or advertisements which encourage the purchase of a product

Sales promotion is one of the four aspects of promotional mix. (The other three parts of the promotional mix are advertising, personal selling, and publicity/public relations.) Media and non-media marketing communications are employed for a pre-determined, limited time to increase consumer demand, stimulate market demand or improve product availability. Examples include:contestspoint of purchase displaysrebatesfree travel, such as free flights
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Noun
1. promotion that supplements or coordinates advertising
(hypernym) promotion, publicity, promotional material, packaging

a form of promotion which encourages customers to buy products by offering incentives, such as contests, coupons, sweepstakes, samples, free gifts and so on; one of the four major elements (with advertising, personal selling and publicity) of the promotion mix.