Hi Pete ! Thanks for your reply. I've updated my code so that I always stay in the same conversation (no more nested). I've also added this : DeviceSearchAction.java | @Observer("org.jboss.seam.afterTransactionSuccess.RTHDevice") | public void refreshDevices() { | logger.debug("refreshDevices() method called."); | queryDevices(); | } | But I still have a problem : If I perform a submit on my edit screen, and the validation fails, my data is gone and not recreated. So if I click my cancel button, whithout finishing my transaction, I return to my previous list with empty data. Is there another event to observe ? Or should I refresh my data each time I return to my list ? Thanks a lot ! View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4101693#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...