In my opinion, it's worth leaving testing cheats turned on in the background if you intend to use cheats at all. Not every cheat code in the game requires this, but many do. In order to enable many of the below cheats, you'll first need to enter the following into the console: testingcheats true or testingcheats on
Exactly how you do this will depend on your hardware: To input The Sims 4 cheats on PC, you first need to open up the cheat console within the game.