July 2019
I'm linked to the game center and when I click to play Sims it tells me to create a new sim. How do I transfer the data?
July 2019
Did you log in to the same account? You can try linking it to another account like Twitter or Facebook, or your EA account.
Or play a little through the game to see if the back up option pops up later on.
Make sure to write down the Player ID of the game you've played before though.
https://help.ea.com/help/the-sims/the-sims-mobile/find-your-player-id-in-the-sims-mobile