On the Documentum side, the portlet is configured as "trusted". A Documentum superuser makes the initial connection, and compares the Jboss-supplied user principal with the users in Documentum. Assuming the principal authenticates with Jboss, and matches a Documentum user, the Documentum module creates a session for that user. The trouble is that I don't know how to set up the authentication to pass the logged-in principal to Documentum. I'll peruse that link though. Thanks. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4132646#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...