<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:urn="urn:partner.soap.sforce.com">
   <soapenv:Header>
      <urn:SessionHeader>
         <urn:sessionId>00D700000000001!AQoAQGgd1SXiXR.NotARealSessionId.xNJ7GZonoQ7yusRoGbHhJl5sZ_IbggO6uik7f</urn:sessionId>
      </urn:SessionHeader>
   </soapenv:Header>
   <soapenv:Body>
      <urn:convertLead>
         <urn:leadConverts>
            <urn:convertedStatus>Closed - Converted</urn:convertedStatus>
            <urn:leadId>00Q00000000001</urn:leadId>
         </urn:leadConverts>
      </urn:convertLead>
   </soapenv:Body>
</soapenv:Envelope>