Supply chain management connects the links of sourcing, procurement, conversion, and logistics management. The primary parts of a modern supply chain are procurement, operations, and logistics. Supply chain managers try to get the right products to the right place at the right time while reducing costs, improving quality and speed. They must develop good relationships with suppliers and customers to integrate the purchasing, manufacturing, and logistics functions of an organization. Issues they face include balancing the demands of customers, investors, and suppliers while ensuring ethical, efficient and sustainable supply chain practices.