wso2esb - SOAPAction header value must be enclosed in double-quotes through WSO2 ESB -

i'm sending request server "soapaction urn:abcd", when send directly server through soap ui i'm able output. when send using wso2 esb i'm getting

<soap:envelope soap:encodingstyle="urn:asdf" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">     <soap:body>        <soap:fault>           <faultcode>soap:client</faultcode>           <faultstring>client error</faultstring>           <detail xmlns="asdf">              <message>soapaction header value must enclosed in double-quotes</message>              <errortype>httpheadererror</errortype>           </detail>        </soap:fault>     </soap:body>  </soap:envelope>

what problem?

just give soapaction header 2 double quotes
e.g.: ""urn:getquote""