E-CRM, or Electronic Customer Relationship Management, is a business strategy that utilizes digital tools and technologies to manage and improve interactions with customers. It involves the use of various online platforms, such as email, social media, and websites, to gather and analyze customer data, track their behavior and preferences, and tailor marketing and sales efforts accordingly. E-CRM aims to enhance customer satisfaction and loyalty by providing personalized and efficient services, ultimately leading to increased customer retention and business growth.