SOAP tutorial
Simple usage of the SOAP service Order Entry Service

## Example

- The service function accepts data for entering an order into the demo database.
- The arguments contain the customer id, item to order and quantity.
- The response is an element with price and expected delivery date, 10 days forward.
- The function creates a SOAP exception if the customer is not found in the database.
- The web page will take the data and call the service on the local server.
- It will display the in and out going messages, including envelopes.