Buyer retention rate is the percentage of customers who continue purchasing from a business over a given period. It is a key metric for evaluating customer loyalty and long-term profitability. High retention rates indicate strong customer satisfaction, while low retention suggests a need for improved engagement strategies. CRMs track retention metrics by analyzing purchase history, customer interactions, and churn patterns. Businesses improve retention through loyalty programs, personalized offers, excellent customer support, and continuous value delivery. Increasing retention reduces customer acquisition costs and drives revenue growth.