The ShipEngine Sales Orders Curl Sample Code demonstrates how to create a sales order manually. To create an order, developers can add an external_order_id, order_date, and ship_to for every sales order item.
The Saia API helps this first class less-than-a-truckload (LTL) carrier deliver by giving developers access to tracking information inside their applications. Rate quotes and pick up scheduling are also accessible. The API uses SOAP and XML, and is implemented using Microsoft's .NET Framework.