"nickarls" wrote : Do you have a messages tag to see validation errors? (although you should see them in the log, too). I inserted a <h:messages /> and get a "validation failed" but I have no idea what kind of validation Seam is doing here. Do I get it right that I can expect an object of the same type as the the collection for the select box contains of as selected element? In this case I don't know why I get an validation error. anonymous wrote : Tried putting a change listener on the select box? Is it necessary? I hope I can get the selected element without it anonymous wrote : The last sql is probably from the entityConverter... Okay. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4119871#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...