ERP system integration refers to the process of connecting an ERP system with other software applications or systems within a business. The goal of ERP system integration is to streamline business processes and improve data visibility across different systems. Common ERP system integrations include connecting with customer relationship management (CRM) systems, supply chain management systems, and financial management systems. ERP system integration can reduce manual data entry and improve data accuracy, but it can also be a complex process that requires careful planning and execution.