If you going to run a long time report in the foreground (DIALOG Workprocess) on your SAP system , then you will get an error “ST22 : ABAP Run time error (TIME_OUT)”

For the solution,  you should run this report or action in background mode on your SAP system or you should increase your “Dialog Workrocess Run Time” parameter.

RZ11 –> rdisp/max_wprun_time

This parameter is dynamic,  therefore you can change the parameter any time without any system restart operation needed.

But if you want a permanent change,  then you have to change this parameter in SAP profile via RZ10 and activate the parameter.