Assuming you mean for s:convertEntity then you need to do, for each extra EntityManager: components.xml <component name="myConverter" class="org.jboss.seam.ui.EntityConverter"> | <property name="entityManager" value="#{myEntityManager}" /> | </component> foo.xhtml <h:selectOneMenu ...> | <s:selectItems .... /> | <f:converter converterId="myConverter" /> | </h:selectOneMenu View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4036420#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...