Hi Tobias, you could try to override the annotations with a deployment descriptor (orm.xml) and remove bold "generated value" attribute. <entity class="..." metadata-complete="true"> | <table name="..."></table> | <attributes> | <id name="id"> | <column name="ID" /> | <generated-value/> | </id> | <basic name="..."> | <column name="..." /> | </basic> | </attributes> | </entity> View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3983827#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...