Harry and David is using sales promotion as a strategy to increase the demand for its products and services
In marketing, sales promotion is the idea whereby businesses use promo to decrement the cost of their product which will eventually call the attention of customers to buy their product or request their services.
In this context, Harry and David gave out coupons that can be used to augment for whatever the customer would have spent to buy their product.
There are other types of marketing like advertising, direct marketing, and publicity, etc.
Learn more about sale promotions here:
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