How do I make a "player market" system?

[royal marlin]

So,basicaly I want to make a system where you can sell something you own and it's put on a shop where all the players can go and buy It

[lucid river]

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[desert thorn]

Builda doesn't support a fully online cloud system, so you should either give up orrrr ask someone(like me ) to help you make a script that saves what items the player is selling before they leave and the items goes into the shop automatically whenever they go online(you cant do it through all servers still tho)