Hi Alex, A lot of thanks for your efforts to help me! So I did understand that in general I should not have problem to pass complex parameter or its part to subsequent webservice. I have just one additional question in this part: Do you mean I have not use and if process message is exactly like a first service call message? I actually tried several things including (may be not exactly) those that you have proposed, but I anyway had errors , so I'll send you my bpel and wsdl for inspection. It seems I have more general problem of visibility of my services. I very appreciate your help and wish you good luck and good health and all my best wishes in new year! View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3997023#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...