How i can save unlocked barriers in uefn creative 2.0?

“I’m working on a system to unlock barriers in Fortnite, and I’ve managed to get it working. The user pays 100 coins and the barrier opens. The problem I’m experiencing is that when the user exits the game and re-enters, the information that the user has paid to open this barrier is not saved in the save point. I wanted to know if anyone knows how I could save the user’s information when unlocking the barrier. I’ve seen that in the creative island of Lumberjack Heroes, they have this system where it saves when a user has unlocked other areas. Does anyone know how I could do it?”