Dynamics 365 is a cloud-based suite of business applications developed by Microsoft. It combines various tools for customer relationship management (CRM) and enterprise resource planning (ERP), helping organizations manage their operations, sales, and customer service more effectively. The platform offers modules tailored for different business needs, such as Sales, Customer Service, Finance, and Supply Chain Management. By integrating these applications, businesses can streamline processes, improve collaboration, and gain insights through data analytics, ultimately enhancing productivity and decision-making.