Is it possible to sell gamepasses on a sign in game

Hey everyone! I’m here asking if it is possible to make a sign in your game, where it has the info and name of the gamepass. When you would click buy, a prompt would show up asking if you want to buy this. I can’t find any tutorials on youtube about this, so I’m wondering if that even exists.

You may find this very helpful:
https://education.roblox.com/en-us/resources/adventure-game-monetization-ingame-purchase

Thanks! I’ll be working on it to make it look better, as it is currently not very good-looking.