Yes it is possible, but AFAIK you are losing seam managed transactions. The last time i was using this was in March 2006. Until then i am bound to seam managed transactions. But if i am wrong, and external datasources in combination with seam managed transactions in tomcat are possible, please tell me how. But nevertheless, new projects will be deployed to an application server. Ciao, View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4029850#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...