Enter the Tcode RZ11 in the command filed, press enter.
Profile parameter screen will
open enter rdisp/gui_auto_logout
in the
Param Name column then press Display button.
Display profile parameter
attributes screen will open
Click the Change Value button, after that
Change parameter value
window will open in the
New Value Column enter 300 ( example 60 seconds = 1 min, 300/60 = 5 minutes ) the logout time is
set to 5 Minutes.
Press the save button for the final changes