How do you make a click part to get badge?

Hello there! I will answer and explain how to do that.

First, add a Script to a part and a ClickDetector. You can call the script whatever you want.

Now, open the script and get BadgeService and connect MouseClick event from ClickDetector

local BadgeService = game:GetService("BadgeService") -- Badge service, used for awarding badges
local badgeId = 1 -- Change 1 to the badge id

script.Parent.ClickDetector.MouseClick:Connect(function(Player)
       
end)

Now, we will use pcall for a protected call and we will use AwardBadge from BadgeService

local success, result = pcall(function()
		return BadgeService:AwardBadge(player.UserId, badgeId)
	end)
	if success then
		print("Success!")
	else
		warn(result) -- If it fails, used for debug
	end

Your code should look like that:

local BadgeService = game:GetService("BadgeService")
local badgeId = 1 -- Change 1 to badge id

script.Parent.ClickDetector.MouseClick:Connect(function(player)
	local success, result = pcall(function()
		return BadgeService:AwardBadge(player.UserId, badgeId)
	end)
	if success then
		print("Success!")
	else
		warn(result) -- If it fails, used for debug
	end
end)

BadgeService