My cash vendor wont work to add cash to the player?

I have this script but I don't know how to Process a Receipt and add cash:

local id = 44311080 


script.Parent.MouseButton1Down:connect(function(player)
	game:GetService("MarketplaceService"):PromptPurchase(player, id)
	-- I dont know how to make it add cash if they buy
end)

Hello, HttpDevz!

So from what I understand, you are making a robux-to-currency product. And I am going to help you assuming that the cash is in your leaderboard.

So here goes:

local id = 44311080 


script.Parent.MouseButton1Down:connect(function(player)
    game:GetService("MarketplaceService"):PromptPurchase(player, id)
    	player.leaderstats.Cash.Value = player.leaderstats.Cash.Value + 300 --Change the '300' to whatever cash you want to give them
end)

--Also I put 'leaderstats', just change it to the parent of the Cash value

Thanks, Radio

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