CoinsProduct v2

local CoinsDataStore = game:GetService("DataStoreService"):GetDataStore("Coins")

local MPS = game:GetService("MarketplaceService")
local Coins10 = script.ID.Value

MPS.ProcessReceipt = function(Info)
    if Info.ProductId == Coins10 then
        local Player = game.Players:GetPlayerByUserId(Info.PlayerId)

        if Player then
            CoinsDataStore:SetAsync(Player.UserId, Player.Coins.Value)
            Player.Coins.Value += 10
        end
    end
end