Marriage won't let you change name.
Product: The Sims 4 Platform:Microsoft XBOX One Which language are you playing the game in? English How often does the bug occur? Every time (100%) What is your current game version number? Most ...
Forum Discussion
You can easily change names anytime by clicking a mirror and "Change Sim".
You can even do it at the wedding venue right after the ceremony if you want 🙂
Not all methods of entering CAS offer the name change option.
@mightyspritesims I too remember some methods of going into CAS not letting you change the name, but I just checked and 'plan outfit' (on mirror), 'change sim', 'choose likes/dislikes', using 'modify in cas' on the sim (requires you to right mouse click with testing cheats on) and changing the household from manage worlds all let you change the name (I even turned cheats off to see if that made a difference, it didn't for me, and then to make sure, removed my mods folder, same results each time). The only method that doesn't even show the name, so therefore you can't change it, is 'plan outfit' on the closet from Get Together, but as I said, I do feel like there were more times that you couldn't change the name in CAS than the Get Together closet in the past.
Best regards,
Jennifer
I googled (images.google.com) for “sims marriage change name popup” and the only relevant-looking hit was a Sims 2 mod. There were a lot of articles on how to change your name after marriage in the Sims 4, but none of them referred to a popup.
