To further answer Aldo's question about combining EJB3 and jBPM, you should wrap the jBPM API you need in a stateless session bean. You can inject your EJB3 persistence context in this session bean and use it to programmatically change the session on your jBPM context. In that way you don't use two persistence managers but only the EJB3 one. Regards, Koen View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4099154#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...