<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
  <soap:Header>
    <ResponseHeader xmlns="https://www.google.com/apis/ads/publisher/{VERSION}">
      <requestId>644a8c6efd398cf8643c29ff68fe574e</requestId>
      <responseTime>22</responseTime>
    </ResponseHeader>
  </soap:Header>
  <soap:Body>
    <soap:Fault>
      <faultcode>soap:Server</faultcode>
      <faultstring>[AuthenticationError.NETWORK_CODE_REQUIRED @ ]</faultstring>
      <detail>
        <ApiExceptionFault xmlns="https://www.google.com/apis/ads/publisher/{VERSION}">
          <message>An error message without errors sibling tags</message>          
        </ApiExceptionFault>
      </detail>
    </soap:Fault>
  </soap:Body>
</soap:Envelope>