When do I use "Shipment suspension API"? Use it when you are not going to ship out a product as a customer requested before shipping out a product. (If you already dispatched a product, call [Shipment Complete API]) Related articles Processing 'Release stop' Is there a way to separately query those for which shipping suspension was requested in the product preparation stage and those for which return was requested after shipping ? An error message "Can not change the delivery status. Please check the order history" is exposed. 고객/반품 요청건이 고객에 의해 수정 또는 철회될 수 있는 최대 기한이 있나요? I want to see OPENAPI's Swagger specifications.