How to Transfer Characters from The Sims 4 Demo [PC]
Have you played The Sims 4 Create A Sim demo and want to save your progress with your characters? that's how transfer Sims from demo to full version.
1) upload the sims created in the demo to the game gallery. Playing the demo the button to access the gallery is located at the top right when you are in the "create a sim" area.
2) after placing it in the demo gallery, you will also have it available in the full game one. Then, in the full game gallery, select the sims you created in the demo and import them. If you are doing everything correctly, a message will ask you if you want to merge or replace the sims you are importing with the current ones.
Here is a video that shows it all