How can I assign clothes to a specific rank in my group?

wait()
p = game.Players.LocalPlayer
groupID= 6998516


game.Players.PlayerAdded:Connect(function(p)
    if p:IsInGroup(groupID)and p:GetRankInGroup(groupID) >= 252 then
        p.ShirtTemplate="http://www.roblox.com/asset/?id=981314839"
        p.PantsTemplate="http://www.roblox.com/asset/?id=457649168"
    end
end)

So first you need at acess player's character "p.CharaterAdded:Connect(function(char)" and after make a for loop .what you did wrong was you wrote "p.ShirtTemplate" it will not acess shirt you need to do "p.Shirt.ShirtTemplate" so it acesses shirt in the local player. :

wait()
p = game.Players.LocalPlayergroupID= 6998516
game.Players.PlayerAdded:Connect(function(p)
	p.CharacterAdded:Connect(function(char)
 
 if p:IsInGroup(groupID)and p:GetRankInGroup(groupID) >= 252 then
 
      p.Shirt.ShirtTemplate="http://www.roblox.com/asset/?id=981314839"
	 
  p.Pants.PantsTemplate="http://www.roblox.com/asset/?id=457649168"
	 
end
end)
end)