TM1: Session Timeout setting for TM1 Contributor / Planner

If the planner screen has been idle for more than 20 minutes, the user will receive a session timeout error message.
To stop this error from occurring, go to the TM1 Web folder, open the web.config file and look for the following section:


timeout="20"            />


The timeout parameter is in minutes and the default setting is 20.  Alter this parameter to something more appropriate.