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: scanning.modernekonomi.se 
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>
<SupplierInvoiceAttachedFilesPostSingleRequest xmlns:i="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://schemas.datacontract.org/2004/07/Dinumero.Dto.SupplierInvoice">
  <Id>0</Id>
</SupplierInvoiceAttachedFilesPostSingleRequest>
    </soap12:Body>
</soap12:Envelope>
 
HTTP/1.1 200 OK
Content-Type: application/xml
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>
<SupplierInvoiceAttachedFilesDeleteResponse xmlns:i="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://schemas.datacontract.org/2004/07/Dinumero.Dto.SupplierInvoice">
  <ResponseStatus xmlns:d2p1="http://schemas.servicestack.net/types">
    <d2p1:ErrorCode>String</d2p1:ErrorCode>
    <d2p1:Message>String</d2p1:Message>
    <d2p1:StackTrace>String</d2p1:StackTrace>
    <d2p1:Errors>
      <d2p1:ResponseError>
        <d2p1:ErrorCode>String</d2p1:ErrorCode>
        <d2p1:FieldName>String</d2p1:FieldName>
        <d2p1:Message>String</d2p1:Message>
      </d2p1:ResponseError>
    </d2p1:Errors>
  </ResponseStatus>
  <NrOfAttachedFiles>0</NrOfAttachedFiles>
</SupplierInvoiceAttachedFilesDeleteResponse>
    </soap12:Body>
</soap12:Envelope>