Multimodal Transport API Guide

No.	API Name	Core Action	Input Key	Business Purpose
1	Logistics Order Upload API	Create Purchase Order	`orderLocalKey`	For the Procurement Dept to create a new purchase order and generate the master document.
2	Segment Shipment Subscription API	Create Shipment Segments (Sea/Air/Land)	`flowNo`	For the Logistics Dept to maintain logistics tracking numbers for Sea, Air, and Land shipments.
3	Segment Shipment Ownership Update API	Establish Association	`orderLocalKey` + `flowNo`	Bind purchase orders with Sea/Air logistics numbers (one-to-many).
4	Manual Shipment Status Upload API	Create Land/Railway Status Updates	`flowNo` (Truck/Railway)	For clients to manually supplement status updates for other transportation modes.
5	Logistics Order Event Push API	Push Sea/Air Status Updates	`flowNo` (Sea/Air)	Automatically push Sea/Air node updates whenever there is a status change.
6	Logistics Order Tracking Download API	Full Trajectory Aggregation Query	`orderLocalKey`	Based on the purchase order `orderLocalKey`, download the full route (Status, Tracking Lights, Itinerary).
7	Multimodal Transport Exception Alert Push API	Exception Event Push	`flowNo`	Push alert messages for transport segment exceptions. (Requires enabling API exception push on the web page first).