NDR (Non-Delivery Report) is a status update generated when a courier partner is unable to deliver a shipment successfully. It helps sellers understand why a delivery attempt failed and what action needs to be taken next. Common NDR reasons include customer unavailable, wrong address, phone not reachable, customer refused delivery, or delivery delayed due to operational issues. Once an NDR is generated, sellers can contact the customer to confirm delivery details or request a reattempt. NDR management is extremely important for reducing RTO (Return to Origin) rates in eCommerce shipping.

Shipping aggregators and courier platforms usually provide dedicated NDR dashboards where sellers can monitor failed deliveries in real time. Quick action on NDR cases improves delivery success rates and customer experience. Proper NDR handling also helps businesses reduce logistics losses and improve operational efficiency.