Nope, your spring and Seam code will not be effected. The configuration might be more difficult though depending upon the transactionManager you are using. For example, if you're using a HibernateTransactionManager you need to make sure that both spring and seam are using the same SessionFactory. If you're using a JTA TransactionManager then you shouldn't need to change anything. Does that help? Mike View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4121627#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...