Sims 4 Studio is the primary tool for updating and translating strings. Game guide:Changing the game language | The Sims Wiki
If you need to update the entire game to a different language, you generally cannot do this inside the game menu. You must use your game launcher: sims 4 language strings upd
When a mod updates, it often adds new text strings that may appear as blank buttons or "missing string" errors if your translation is outdated. Using Sims 4 Studio (S4S) Sims 4 Studio is the primary tool for
