Customer service is the support provided by a business to its customers before, during, and after the purchase of a product or service. The goal of customer service is to meet the needs and expectations of customers, enhance their satisfaction, and build long-term relationships. Customer service may include various activities such as answering inquiries, providing assistance, resolving complaints, processing orders, and offering advice or recommendations. It can be delivered through multiple channels, including phone, email, chat, social media, and in-person interactions. Effective customer service is crucial for retaining existing customers, attracting new ones, and promoting a positive brand image.