(I have done a search through the questions to see if I could find something on this, but have not found answers.) I have two google groups through my G-suite and I want to automatically add people to both groups after they sign up for my club through a process on my website. I think this should be possible using: https://developers.google.com/admin-sdk/directory/v1/guides/manage-group-members I have gone into the API Console, created a new project, enabled the Admin SDKI API, and got an API key. However, I think I am running into the Authorization issue because we keep getting an error that the authorization token is missing. I have tried using the OAuth 2.0 but I'm not sure if this should be "Internal" or "External". I'm not creating a whole app for someone to use - all I want to do is on the back end of the site take information that comes through when someone joins the club and automatically have them added to my google groups. Is it possible for someone to please explain to me what I need to do? I'm sorry this is kind of a basic question.
Thank you for your help.