Let Seam start the persistence unit, this will scan for META-INF/persistence.xml and deploy the "wiki" persistence unit if you put it in components.xml: | <core:managed-persistence-context name="entityManager" | auto-create="true" | entity-manager-factory="#{wikiEntityManagerFactory}"> | </core:managed-persistence-context> | | <core:entity-manager-factory name="wikiEntityManagerFactory" persistence-unit-name="wiki"/> | | Now use @In entityManager to get a Seam-managed persistence context that is automatically scoped to the conversation. You also want to use the TransactionalSeamPhaseListener in your faces-config.xml with that. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4036048#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...