a r o often refers to “After Receipt of Order,” a business term indicating the timeline begins once an order is received. It’s commonly used in supply chain management, manufacturing, and fulfillment to define lead times and production cycles. For instance, “10 days ARO” means delivery is expected 10 days after the order is received. Understanding ARO timelines helps businesses manage customer expectations and plan inventory accurately. It also aids in contract negotiations where specific delivery windows are essential for performance metrics and client satisfaction.