How can I make codes for my private server system?

I'm trying to make a system where you can create a private server wich has a code so you can give the code to people so they can use it to join your private server but JobIDs and the Access Code from reserved servers are too long so ¿Is there another way to join by special codes?

Any help would be appreciated.

You can utilise MessagingService and also use string.sub to shorten the access code. You can store all this data in a dictionary such as:

local privateServers = {
	["InediblesServer"] = {
		["AccessCode"] = "3123123",
		["ServerId"] = "1231231231",
		["Password"] = "inediblenoob",
	}
}