David Taback commented on Mar 10, 2014

Re: Customizing error pages in IBM WebSphere Portal and IBM Web Content Manager applications in a multi-site environment

I have managed to get customized error pages to work on WP8.

The solution is to change BOTH the web.xml as well as the web_merged.xml in the exported web.ear: wps.war/WEB-INF. This is according to the comment from Thomas Hurek on the following blog entry - How to update and redeploy wps.ear : https://www.ibm.com/developerworks/community/blogs/PortalL2Thoughts/entry/how_to_update_and_redeploy_wps_ear12?lang=en

Also, I suggest that the change is made using the process described in the blog entry to change and redeploy the ear file and also using the process in the TECHNOTE http://www-01.ibm.com/support/docview.wss?uid=swg21411195.