Hmm... I'm using this in my entity manager: | @PersistenceContext | private EntityManager em; | Not sure why doing it this way the merge is required but if I don't have it I get attached exceptions. It may be possible the entity became detached or somehow got tangled up in a context someplace (session vs conversation vs ???). I'm sure being a relative Hibernate newbie and a relative Seam newbie isn't helping me. :-) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4035807#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...