Gamepass purchase script "invalid"

Help and Feedback Scripting Support
#1

Hi, Why7 is this invalid? I have the pass and all, but it will just come up with an invalid error.

local productId = 13992448 
local player = game.Players.LocalPlayer

script.Parent.MouseButton1Click:Connect(function() 
	game:GetService("MarketplaceService"):PromptPurchase(player, productId)
end)

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image981×575 62.9 KB

Also, the text at the bottom is broken for no reason.

wait (5)
local Player = game.Players.LocalPlayer 
script.Parent.Text = Player.Name..", You own"

local gamePassID = 13992448  
local MarketplaceService = game:GetService("MarketplaceService")
local function onPlayerAdded(character)

	local player = game:GetService("Players"):GetPlayerFromCharacter(character)
	local hasPass = false


	-- Check if the player already owns the game pass
	local success, message = pcall(function()
		hasPass = MarketplaceService:UserOwnsGamePassAsync(player.UserId, gamePassID)
	end)

	wait (7)
	if hasPass then
		coroutine.wrap(function()
			while true do
				wait (1)
				script.Parent.Text = "1 Out of 1 Gamepasses!" 
			end
		end)()
	else
		coroutine.wrap(function()
			while true do
				wait (1)
				script.Parent.Text = "0 Out of 1 Gamepasses!"
			end
		end)()
	end
end


onPlayerAdded(script.Parent)
1 Like
#2

Your gamepass isn’t on sale right now

#3

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image1428×478 16.6 KB

#4

You might have to do PromptGamepassPurchase instead?

#5

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image694×449 37.5 KB

Still nothing.

#6

Do you have API Services turned on?

#7

You’ll have to setup a remote for the server to prompt the client instead.
https://developer.roblox.com/en-us/api-reference/function/MarketplaceService/PromptPurchase

Edit: Scrap that, the whole system seems fundamentally flawed. Let the server do 100% of the checking and prompting. When the prompt is successful, send the information back to the client that the purchase was successful, then change the text.

#8

Crazy as it sounds, that made it work. Thanks for fixing it, and do you have a fix for this?

1 Like
#9

Do that checking in the server as well.

--// Server //--
local MarketplaceService = game:GetService("MarketplaceService")
local gamePassID = 13992448
local CheckForGamepass = <RemoteFunctionDirectoryHere>

function CheckForGamepass.OnServerInvoke(player)
    local hasPass = false
    local success, message = pcall(function()
        hasPass = MarketplaceService:UserOwnsGamePassAsync(player.UserId, gamePassID)
    end)

    return hasPass
end

--// Client //--
local CheckForGamepass = <RemoteFunctionDirectoryHere>

-- somewhere in the client
if CheckForGamepass:InvokeServer() then
    --
end
1 Like