I see that your code is generating

  <S:Body>
    <ns0:getAllLocalGroups>
      <ns0:evsId xsi:type="xsd:unsignedShort">evsId</ns0:evsId>
    </ns0:getAllLocalGroups>
  </S:Body>
[download]

I would like to generate this

  <S:Body>
    <ns0:getAllLocalGroups> 1 </ns0:getAllLocalGroups>
  </S:Body>
[download]

Please show me how you would use SOAP::Lite to generate that.

Again, note there is no element called evsId, the value of evsId is placed in an element that is also the methodName, that of "getAllLocalGroups".