Thanks for your quick reply. Yes, it worked but I have to call commit or flush explicitly. I am using TransactionManager. I just want to avoid dirty updates. For example If I have a conversation based on 2 requests. In first request Application update a data model, and in second request Application calls session.saveOrUpdate method. I just want to update database after second request by Seam Transaction Manager. Umar View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4007658#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...