"ALRubinger" wrote : | If you'd like to only have one instance of your persistence.xml file, consider repackaging such that both of your Seam apps will have access to it... | ALR, Thanks for the information. I didn't realize that the persistence unit name had to be unique across ears. I assumed that the names would be localized to the namespace of each individual ear application. I wanted to use Seam and am learning a whole lot about applications servers in the process. What would you recommend I do for "repackaging". Just create another ear file with the bare minimum to load the persistence unit into the JNDI session? Or is their something else I should consider. Thanks, --jc View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3968220#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...