The document discusses the importance of customer retention strategies, specifically focusing on exit popups that offer discounts to prevent potential customers from leaving e-commerce websites. It emphasizes how such popups can enhance conversion rates by turning visitors into long-term customers, and outlines effective tactics for customer retention including outstanding support, minimizing effort, and clear communication. Additionally, it provides examples of well-designed exit popups from various online stores and introduces a tool for implementing these popups in an OpenCart store.