You can Add and Update Orders in your network by issuing a
POST request to http://api.resengo.com/WS/Order.
The OrderIDs returned in the response should be saved in your database.
If possible, always use an OrderID when updating an Order in the network.
If you do not have a OrderID yet (because you are uploading the Order for the first time) and you are sending multiple Orders at once, you can differentiate between the results by specifying a SMS_OrderHeadID or SMS_OrderHead for each posted Order. These should correspond to the primary key of your local database.