Will this script work?

local MORE_COINS_ID = (Game.PlaceId == 106280854) and 19945361 or 19945373
local MarketplaceService = Game:GetService('MarketplaceService')
local Player = PlayerGui.Parent

local function OnPromptProductPurchaseFinished(userId, productId, isPurchased)
	_G.print("OnPromptProductPurchaseFinished:", userId, productId, isPurchased)
	if isPurchased and userId == Player.userId and productId == MORE_COINS_ID then
		_G.print("Success")
		_G.GivePlayerCoins(Player, 150)
		_G.GivePlayerPoints(Player, 1)
	else
		_G.print("Failure")
	end
end

MoreCoinsButton.MouseButton1Click:connect(OnMoreCoinsClicked)
MarketplaceService.PromptProductPurchaseFinished:connect(OnPromptProductPurchaseFinished)

The last line is... :connnect(OnPromptProductPurchaseFinished)

The script suppose to Give playerpoints and coins when someone purchase a product.

will this work? if not please explain why not and if you can fix it.

Thanks for all the helpers!