Hi Toni, Oh, my mistake, I put the annotation in the wrong place (at one level deeper in the call chain). Now it works to me, with a SLSB. You have to make sure you put the annotation in the bean implementation code, at the method starting the transaction. By default, a transaction starts when the first call to a session bean method is beeing made from the user code, if no other transaction annotations have been used. Hope it will work for you too. Horia View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4053061#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...