I've tryed so many things, It either bugged it or the player, was allowed to STILL buy it more then once.
local player = game.Players.LocalPlayer
local character = game.Workspace:WaitForChild(player.Name)
local money = player.leaderstats.Cash
local price = script.Parent.Parent.PriceValue.Value
local level = player.leaderstats.Level
local LEVEL = script.Parent.Parent.LevelRequired.Value
local tool = game.ReplicatedStorage.Purchase:FindFirstChild(script.Parent.Parent.ToolName.Value)
function click()
script.Parent.Parent.Parent.Parent.Click:Play()
if level.Value >= LEVEL then
else
script.Parent.Parent.PurchaseText.Text="Your level is to low!"
script.Parent.Parent.PurchaseText.Visible=true
wait(2)
script.Parent.Parent.PurchaseText.Visible=false
return
end
if player.Backpack:FindFirstChild(game.ReplicatedStorage.Purchase:FindFirstChild(script.Parent.Parent.ToolName.Value)) then
script.Parent.Parent.Parent.Parent.Click:Play()
script.Parent.Parent.PurchaseText.Text="You already have this Item!"
script.Parent.Parent.PurchaseText.Visible=true
wait(2)
script.Parent.Parent.PurchaseText.Visible=false
return
else
if money.Value >= price then
money.Value=money.Value - price
tool:Clone().Parent=player.Backpack
script.Parent.Parent.Parent.Parent.PurchaseSound:Play()
script.Parent.Parent.PurchaseText.Text="Purchase success!"
script.Parent.Parent.PurchaseText.Visible=true
wait(2)
script.Parent.Parent.PurchaseText.Visible=false
else
script.Parent.Parent.PurchaseText.Text="You don't have enough!"
script.Parent.Parent.PurchaseText.Visible=true
wait(2)
script.Parent.Parent.PurchaseText.Visible=false
end
end
end
script.Parent.MouseButton1Click:connect(click)

3 comments
Why not use a if statement to check wither or not the Player already has the tool before allowing the player to purchase it?!?
This is extremely round about but with the lack of knowing how else to do this... You could set up a bool value that determines if the object has been purchased. If bool is true then player has purchased else player has not purchased give them the item.
Yep I would do what AZDev on that. It's the simplest way (that I know of) to make sure they don't have one.