//request
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:urn="urn:Core.service.livelink.opentext.com">
   <soapenv:Header/>
   <soapenv:Body>
      <urn:AuthenticateUser>
         <urn:userName>TL_test1</urn:userName>
         <urn:userPassword>Livelink.2014</urn:userPassword>
      </urn:AuthenticateUser>
   </soapenv:Body>
</soapenv:Envelope>
//response
<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/">
   <s:Body>
      <s:Fault>
         <faultcode xmlns:a="urn:Core.service.livelink.opentext.com">a:Core.LoginFailed</faultcode>
         <faultstring xml:lang="en-US">Invalid username/password specified.</faultstring>
      </s:Fault>
   </s:Body>
</s:Envelope>