Hello, We store the user id. Please, keep in mind that username may change. In the token you can use the "sub" claim to obtain the user id. On 12/29/2016 4:58:33 AM, uğur kolip <ugur.kolip(a)gmail.com&gt; wrote: Hi, I use keycloak 2.4.0.Final with spring boot adapter, and authz-client -authz-admin. When i set owner , i set (getAccessToken().getPreferredUsername()) (my user name, admin ) But when i try to get resource owner ($evaluation.getPermission().getResource().getOwner()), it returns userid not username. is it wrong ? or do you these purposely ? is username unique ? why does we use username ? thank you for helping _______________________________________________ keycloak-user mailing list keycloak-user(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/keycloak-user