How to make a player NOT have to rejoin for a gamepass to work?

If we use this, we would have to rejoin for it to work, so is there any way of getting it to work with the ~~~~~~~~~~~~~~~~~

player still in game?

local passId = 0000000 -- change this to your game pass ID.
 

function isAuthenticated(player) -- checks to see if the player owns your pass
    return game:GetService("GamePassService"):PlayerHasPass(player, passId)
end
 
game.Players.PlayerAdded:connect(function(plr)
    if isAuthenticated(plr) then
        print(plr.Name .. " has bought the game pass with id " .. passId)
    end
end)

If the game passes are being bought in game with MarketplaceService you can use the PromptPurchaseFinish event.

local Market = game:GetService("MarketplaceService")

Market.PromtPurchaseFinish:connect(function(Player,Asset,Bought)
	if Bought then
		if Asset == 312312312312321312 then
			print("yey")
		elseif Asset == 321312354364 then
			print("No!")
		end
	end
end)