You need to bind the entitymanager factory to JNDI. See Seam docs ch. 8.3.1. Regards Felix View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4036643#4036643 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4036643