Consumer promotion, trade promotion, and Sales Force Promotion are the three forms of sales promotion.

Sales promotion is a marketing tool that is designed to increase short-term sales and customer interest in a product or service.

1. Consumer promotion: This type of sales promotion is aimed at the end consumer and is designed to generate short-term sales through discounts, coupons, contests, and other incentives.

2. Trade promotion: This type of sales promotion is aimed at wholesalers, retailers, and other intermediaries in the distribution chain. Trade promotions are used to encourage these intermediaries to stock and sell a particular product or service, and can include price reductions, discounts, and other incentives.

3. Sales force promotion: This type of sales promotion is aimed at the company's sales team and is designed to motivate and encourage them to sell more of a particular product or service. Sales force promotions can include bonuses, contests, and other incentives.

By using a combination of these different types of sales promotions, companies can create a more comprehensive and effective promotion mix that addresses the needs of all stakeholders in the marketing and sales process.