Customer Relationship Management (CRM) is a business strategy focused on building and managing relationships with customers to improve business outcomes. It involves collecting customer data through various systems and channels to better understand customer needs and provide personalized service. Implementing a successful CRM strategy can increase customer retention rates by 5-10%, reduce customer acquisition costs by 8-10%, and boost sales by 20-85%. However, CRM initiatives often fail when not given sufficient resources, when lacking executive support, or when not properly integrated across business functions.