Roblox 'DataStore request was added to queue' Fix

The error

DataStore request was added to queue. If request queue fills, further requests will be dropped.

What it means

You're calling the DataStore faster than the per-server request budget allows, typically saving on every change or in a tight loop, or writing the same key more than once every 6 seconds.

The fix

local DataStoreService = game:GetService("DataStoreService")
local Players = game:GetService("Players")
local store = DataStoreService:GetDataStore("PlayerData")
local function save(player)
    local data = { Coins = player.leaderstats.Coins.Value }
    local ok, err = pcall(function()
        store:UpdateAsync("Player_" .. player.UserId, function() return data end)
    end)
    if not ok then warn("Save failed:", err) end
end
Players.PlayerRemoving:Connect(save)
game:BindToClose(function()
    for _, p in ipairs(Players:GetPlayers()) do save(p) end
end)

Keep data in memory while the player is in-game and save on leave, on shutdown and, at most, on a slow autosave timer (e.g. every few minutes). Enable Studio API access to test.

Roblox 'DataStore request was added to queue' Warning – Fix

The error

What it means

The fix