The primary function of an enterprise resource planning (ERP) system is to integrate and streamline business processes across various departments within an organization. ERP systems provide a centralized platform for real-time data sharing, improving collaboration and decision-making. They help manage core business functions such as accounting, human resources, supply chain management, and customer relationship management. By unifying these processes into a cohesive system, ERP enhances efficiency, reduces operational costs, and offers insights through analytics. Ultimately, it supports strategic planning and resource allocation, fostering improved overall organizational performance.