Region3 only execute command once if player enters region

Help and Feedback Scripting Support
#1

Hi, is it possible to only execute a command once when a player enters a Region3?
I am thinking that ‘debounce’ wont work as it will only switch from true and on.

local part = script.Parent
local region = Region3.new(part.Position - part.Size/2, part.Position + part.Size/2)



while true do
	game:GetService('RunService').Heartbeat:Wait()
	local partsInRegion = workspace:FindPartsInRegion3(region, nil, 1000)
	for i, part in pairs(partsInRegion) do
		if part.Parent:FindFirstChild("Humanoid") ~= nil then
			print("working")
		end	
	end
end
#2

The purpose is to execute a remoteevent which activates a gui for the player.

#3

Just check if the player’s PlayerGui folder already contains the gui which is being given, if it does don’t give them it.