You can use a custom setting to adjust the session timeout.
Note that when a session times out a user doesn't receive notification until they attempt to do something that requires a session (i.e. navigate to another page or run a microflow).
You can change the default setting by contacting Mendix support. Here is the link to support, and you want to click "submit a request".
Hope this helps!
Thanks for your response Austin. I forgot to mention it is On premise application and not on Mendix Cloud. So, I have already checked the Mendix console for settings and nothing specified for Session Timeout.
For on premise installations look for the Settings.yaml configuration file and try to find settings related to sessions, ie. SessionTimeout.
More information related to the Settings.yaml file can be found here: