Getting VersionMismatchFaultCode while accessing PBMService APIs

Hi,

I am getting VersionMismatchFaultCode while accessing PbmRetrieveServiceContent() API of PBM Service. 

From Documentation, I have read that we need to pass vcSessionCookie with sessionid of vCenter Server [returned by vim login API].

I have added custom header to execute this API using SoapUI tool.

Following is the request in SoapUI:

POST https://198.18.3.217/sdk/pbmService HTTP/1.1
Accept-Encoding: gzip,deflate
Content-Type: text/xml;charset=UTF-8
SOAPAction: "urn:pbm/2.0"
Cookie: vcSessionCookie="7d864e17de7a3fbc56301b882abe538226bdced3",Path=/;HttpOnly;Secure;
Content-Length: 332
Host: 198.18.3.217
Connection: Keep-Alive
User-Agent: Apache-HttpClient/4.1.1 (java 1.5)

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:urn="urn:pbm">
   <soapenv:Header/>
   <soapenv:Body>
      <urn:PbmRetrieveServiceContent>
         <urn:_this type="PbmServiceInstance">ServiceInstance</urn:_this>
      </urn:PbmRetrieveServiceContent>
   </soapenv:Body>
</soapenv:Envelope

Following is the response of this API execution:

<soapenv:Envelope xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
   <soapenv:Body>
      <soapenv:Fault>
         <faultcode>VersionMismatchFaultCode</faultcode>
         <faultstring>Unsupported version URI "urn:pbm/2.0"

while parsing SOAP body
at line 3, column 3

while parsing SOAP envelope
at line 1, column 0

while parsing HTTP request before method was determined
at line 1, column 0</faultstring>
      </soapenv:Fault>
   </soapenv:Body>
</soapenv:Envelope>

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By using gsoap generated code (C++) , I am facing the same issue.

I am stuck at this point.  Any help will be appreciated.

Thanks,