post https://order_platform_url/orders//completed
The Order Completed endpoint is used to notify the order platform that the delivery of an order has been successfully completed. This notification is primarily sent by GrubOne when they manage the order's delivery. If the order platform itself handles the delivery process, this status update can be disregarded. Regardless of whether the status update is processed or not, the endpoint must respond with a 204 No Content status code, confirming that the request was received and no further action is required.