Roblox has no official method to buy or sell experiences.
If another player offers to buy your experience or sell one to you, it's probably a scam. Do not give other players Robux or items in exchange for an experience, because there’s no official system which allows them complete the trade.
Roblox cannot enforce deals made between players outside of official systems. Never give out your personal information, including password, to someone promising to build an experience with your account. If you give them your password they can also take all your items and Robux. Sharing passwords is a violation of the Terms of Use and Roblox Community Standards.
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