HTTP + SOAP12
         The following are sample HTTP requests and responses. 
            The placeholders shown need to be replaced with actual values.
POST /soap12 HTTP/1.1 
Host: api-beta.ghs-automotive.nl 
Content-Type: text/xml; charset=utf-8
Content-Length: length
<?xml version="1.0" encoding="utf-8"?>
<soap12:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap12="http://www.w3.org/2003/05/soap-envelope">
    <soap12:Body>
<StartCatalogueSessionRequest xmlns:i="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://schemas.datacontract.org/2004/07/S1.Api.Domain.Models.CustomAuth">
  <data>String</data>
</StartCatalogueSessionRequest>
    </soap12:Body>
</soap12:Envelope>