<faultcode>soapenv:Server.generalException</faultcode><br><div class="gmail_quote"><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div> <errorMessage xsi:type="xsd:string">Group Group Key cannot be null<br>(com.xyz.sms.common.SMSException: no user message defined)</errorMessage><br> <errorCode xsi:type="xsd:int">-9999</errorCode> <br>
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<div> <br></div></blockquote></div><br>looks like the server is expecting a user defined message, if you modify your request to add that it will probably give your expected response .<br>