private SOAPEnvelope buildSoapEnvelope(String clientID, String value) {
SOAPFactory soapFactory = OMAbstractFactory.getSOAP12Factory();
SOAPEnvelope envelope = soapFactory.createSOAPEnvelope();
SOAPHeader header = soapFactory.createSOAPHeader();
envelope.addChild(header);
OMNamespace synNamespace = soapFactory.
createOMNamespace("http://ws.apache.org/ns/synapse", "syn");
OMElement clientIDElement = soapFactory.createOMElement("ClientID", synNamespace);