The following description will appear in the topic "Cognos TM1 Web Configuration Parameters" in a future version of the IBM Cognos TM1 Installation and Configuration Guide.
Specifies the URL of a dedicated Logout page for CA SiteMinder when TM1 is configured to use CAM security (mode 4 or 5). This Logout page must be accessed on logout so that the SiteMinder session cookie can be invalidated.
When a user clicks Logoff in TM1 Web, the CAM logout occurs first. Then the SiteMinder Logout page is called.
17 June 2018