The Salesforce Order Management System efficiently handles inventory management by integrating real-time inventory data from multiple sources, ensuring accurate stock availability across channels. It uses advanced order routing capabilities to allocate orders to the best fulfillment locations based on proximity, inventory levels, and business rules. The system supports complex fulfillment scenarios, such as split shipments or drop shipping, for optimal delivery. By leveraging Salesforce's integration capabilities, it syncs with ERP and warehouse management systems for seamless operations. This ensures an end-to-end streamlined order process that enhances customer satisfaction.