Thanks pramod_bs, We've already inspected that. However, we discovered some differences between xml formats when using complex types. The Delphi client generates different patterns when using complex object holding date values and jboss ws is not able to translate that. Maybe later I post the soap envelops for you guys. Fortunately, our Delphi Jedi wake up and remake an Soap update code. Now, everything works fine! For sure, someone is not following the soap spec... View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4240065#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...