You still don't need @Out(scope=ScopeType.CONVERSATION, required=false) This is sufficient: @Out(required=false) Why? The ClientPersonEditAction has already the Conversation Scope, and so its properties have that scope, too. You only have to write down a scope for a property explicitly if it differs from its class's scope. And yes: Seam's Scopes are powerful but not always easy to understand. Before developing web apps the easy way you have to learn it the hard way ;). PS: If you would have posted the xhtml containing "Kundenverwaltung" earlier, we could have made a phone call ;). It's really weird how many guys are talking English to each other here (and often having problems with it) though they could have it easier... in Thomas Heute's native language ;D. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3960630#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...