This is weird . But you can see the Booking Seam example which uses Ajax4JSF, and check what you have different. By instance in that example you have aregister.xhtml page and you can change this part: | <h:commandButton id="register" value="Register" action="#{register.register}"/> | | to this one: | | <a4j:commandLink id="register" value="Register" action="#{register.register}"/> | | That should work. I took a look that example before migrating my Seam app. to Ajax4JSF HTH. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4036541#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...