Use @PersistenceContext if you are using EJB3 and if you need a new transaction (@TransactionAttribute(TransactionAttributeType.REQUIRES_NEW) ) - Seam ref: anonymous wrote : | If you are using EJB3 and mark your class or method @TransactionAttribute(REQUIRES_NEW) then the trans- | action and persistence context shouldn't be propagated to method calls on this object. However as the Seam- | managed persistence context is propagated to any component within the conversation, it will be propagated to | methods marked REQUIRES_NEW. Therefore, if you mark a method REQUIRES_NEW then you should access the en- | tity manager using @PersistenceContext. | otherwise use SMPC. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4127255#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...