Hi PeterJ, the application runs, client accesses the bean! The Bean is deployed but under jndi-name ejb/CustomerProcess. For me it seems as if Jboss is looking up for CustomerProcess only. As mentioned, everything was working perfect under Jboss4.0.3SP1. It was simply re-deployment under Jboss4.0.4 / 4.0.5 and bang. Marcos View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3989997#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...