Thanks Alejandro. Now I have another problem. When the process invoke the external web service, it sends a SOAP message like this: anonymous wrote : <env:Envelope xmlns:env='http://schemas.xmlsoap.org/soap/envelope/'> | <env:Header/> | <env:Body> | <defaultNS:CapitalCity xmlns:soap='http://schemas.xmlsoap.org/soap/envelope/' xmlns:xsd='http://www.w3.org/2001/XMLSchema' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance'>ES</d... | </env:Body> | </env:Envelope> | I don't now why the process adds the prefix "defaultNS". The external web service replies whit this: anonymous wrote : | <soap:Envelope xmlns:soap='http://schemas.xmlsoap.org/soap/envelope/'> | <soap:Header/> | <soap:Body> | <env:Fault xmlns:env='http://schemas.xmlsoap.org/soap/envelope/'> | soap:Server | Request parse error: The prefix 'defaultNS' has not been mapped to any URI | | </env:Fault> | </soap:Body> | </soap:Envelope> | What can I do? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4020520#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...