Token
Tokens
Intro
These are used instead of user credentials username and password. It is more secure and you can set token to expire or delete after some time.
Preferred method for cloning stuff, even under the hood everything in the past decade or so is token based.
Github
Classic
Normal repo cloning token - permissions.
SSO
Authorize SSO access
Make sure after you create that token, you give them access to SSO specific github repositories.