Customer relationship marketing sends follow-up messages after each purchase where customers receive timely offers that bring them back to buy again. After a customer buys a product, the business sends a message based on that purchase and suggests similar items, complementary products, or a discount on the same category. When customers see offers that match what they recently bought, they are more likely to return within a short time, purchase related items or repeat the same product, and gradually develop a habit of buying again from the same business. Check out advantages and disadvantages of customer relationship marketing for more information.