Customize the home page login URL with the theme
In the theme the login link points to a protected URL to the home page of the default portal installation. If we remove this page, or if you want the users to be directed to a different page after login, edit...
PORTAL_HOME/theme/wp.theme.themes/default80/installedApps/DefaultTheme80.ear/DefaultTheme80.war/themes/html/dynamicSpots/commonActions.jsp
...and locate the line...
<portal-navigation:urlGeneration allowRelativeURL="true" keepNavigationalState="false" contentNode="wps.content.root" home="protected" >
Change wps.content.root to the unique name of the page to which you want the users to be directed after logging in.
Parent: Configure portal behavior