Sorry about truncating my reply, I had to go out. "beligum" wrote : 5. Is it normal I can't use <s:convertEntity /> if I use @PersistenceContext instead of an injected (@In) entity manager? Yes. s:convertEntity uses an SMPC / Seam managed transactions to reload the entity from the PC. Unless you have a LRC in which you previously loaded the entity the reloaded entity won't be equal - you have to use ID equality (see http://hibernate.org/109.html). And I need to work out how to explain this better ;) anonymous wrote : 8. If I would like to post my findings of today in a wiki, what's the best one I can choose? Any additions to http://wiki.jboss.org/wiki/Wiki.jsp?page=SeamProblemsFAQ are great, otherwise, you could use the above as the start of SeamPersistenceFAQ linked off the main wiki page :) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4052862#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...