DevProductsHandler - Part 9!

local MarketPlaceService = game:GetService("MarketplaceService")
local Players = game:GetService("Players")

local DevProductIDS = {
    1234567890; -- 2.5K Coins
    1234567890; -- 10K Coins
    1234567890; -- 25K Coins
    1234567890; -- 50K Coins
    1234567890; -- 100K Coins
}

MarketPlaceService.ProcessReceipt = function(receiptInfo)
    local player = Players:GetPlayerByUserId(receiptInfo.PlayerId)
    if not player then
        return Enum.ProductPurchaseDecision.NotProcessedYet
    end

    if receiptInfo.ProductId == DevProductIDS[1] then
        player.leaderstats.Coins.Value += 2500
    elseif receiptInfo.ProductId == DevProductIDS[2] then
        player.leaderstats.Coins.Value += 10000
    elseif receiptInfo.ProductId == DevProductIDS[3] then
        player.leaderstats.Coins.Value += 25000
    elseif receiptInfo.ProductId == DevProductIDS[4] then
        player.leaderstats.Coins.Value += 50000
    elseif receiptInfo.ProductId == DevProductIDS[5] then
        player.leaderstats.Coins.Value += 100000
    end
end