"petemuir" wrote : Check you've configured org.jboss.seam.selectitems.SelectItemsPersistenceConfig -> persistenceUnitJndiName in components.xml - it should be set the same as org.jboss.seam.core.ManagedPersistenceContext -> persistenceUnitJndiName <component class="org.jboss.seam.selectitems.SelectItemsPersistenceConfig"> | <property name="persistenceUnitJndiName">java:/seamappEntityManagerFactory</property> | </component> This is explained on the wiki and in the readme. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3982449#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...