pash 0 Newbie Poster

Hello, pliz can someone help me on this I have created a web sercive in Java and has eable it to use WSIT, now when i try to call the web service, my client tries with no success and I get an error message in the message log saying:

A required header representing a Message Addressing Property is not present, Problem header:{http://www.w3.org/2005/08/addressing}Action

I have tried to look for a solution with no success at all that I am trying. I would greatly appreaciate your heelp in this

Pash