Big Data refers to large, complex datasets that require advanced analytics tools for processing and interpretation. In CRM, Big Data is used to analyze customer behavior, predict trends, and personalize marketing campaigns. AI and machine learning-powered CRM systems process vast amounts of customer interactions, social media activity, and transaction history to generate actionable insights. Businesses use Big Data analytics to improve customer segmentation, optimize sales strategies, and enhance customer experience. Effective use of Big Data helps organizations stay competitive by leveraging real-time insights for smarter decision-making.