A CRM (Customer Relationship Management) system is a software solution that facilitates communication and data management between businesses and their clients, suppliers, and partners, helping to manage customer relationships and boost sales through a centralized platform. Key features include contact management, marketing campaign automation, customer data analysis, and integration with various communication channels. Choosing the right CRM involves assessing business needs, flexibility, cloud accessibility, and integration capabilities, ultimately aimed at enhancing customer interactions and improving organizational efficiency.