How to use save tables to save the progress for players in a tycoon?

The script im using below should work, Im just not sure if I should put the tycoon objects Ids into the save table, or how to put the tycoon purchases into the save tables at all.

``
local DataStoreService= game:GetService('DataStoreService'):GetDataStore("PretendCodeIsHere")
local RunService = game:GetService("RunService")
local db = 3
function SaveTableFunc(player)
    local SaveTable = { 
    }
    return SaveTable
end
game.Players.PlayerAdded:connect(function(player) 
    repeat wait() until player.Character
    repeat wait() until script:FindFirstChild("stats")
  local save1 = script.stats:Clone()
    save1.Parent = player
    local stats = player.stats
    local save = SaveTableFunc(player)
    local playerkey = "player-"..player.userId
    local SaveFiles = DataStoreService:GetAsync(playerkey)
    function dataInput(player, save)
          print("Got saved data for "..player.Name)
    end
    local Passed, Error = pcall(function() 
            if SaveFiles == nil then
                print(player.Name.." has no save data yet")
            else
        dataInput(player, save)
            end
    end)
    if Error then
        print("***ERROR GETTING SAVE FILE FOR "..player.Name)
        local attempts = 0
        while wait(db) do
            local retries = attempts + 1
            attempts = retries
            local pass,err = pcall(function()
            if SaveFiles == nil then
                print(player.Name.." has no save data yet")
        else
        dataInput(player, save)
            end
      end)
            if pass or attempts == 5 then break end
        end
    end
end)

function SaveData(player)
    local Success,Error = pcall(function()
        local playerkey = "player-"..player.userId
        local save = SaveTableFunc(player)
        DataStoreService:SetAsync(playerkey,save)
        print("Saved data for "..player.Name)
    end)
    if Error then
        print("***ERROR SAVING DATA FOR "..player.Name)
        local attempts = 0
        while wait (db) do
            local retries = attempts + 1
            attempts = retries
            local pass,fail = pcall(function()
                local playerkey = "player-"..player.userId
                local data = SaveData(player)
                DataStoreService:SetAsync(playerkey,save)
                print("Successfully saved data for "..player.Name)

            end)

            if pass or attempts == 10 then break end

        end

    end
end

game.Players.PlayerRemoving:Connect(SaveData)

game:BindToClose(function() 
    if RunService:IsStudio() then return end
    local Players = game:GetService("Players")
    for _,player in pairs(Players:GetPlayers()) do
        SaveData(player)
        print("Saved data for "..player.Name.." on shutdown.")
    end
end)``