Enable OAuth2 authentication plugin (Site administration > plugins > manage authentication) Set up an OAuth2 issuer Setting up OAuth2 can be tricky, it is recommended to review the documentation here: https://docs.moodle.org/311/en/OAuth_2_services You will need to have a functioning provider to test the full workflow. Setup a Microsoft provider, using the guide here: https://docs.moodle.org/311/en/OAuth_2_Microsoft_service (It doesn't have to be MS, but it is one of the easier ones to setup, and it allows "localhost") When setting up the OAuth2 provider unselect the "Require email validation" checkbox. (This makes testing steps easier) In the administration menu navigate to "Plugins > Manage authentication" Verify: That in the table row for "OAuth 2" There is now a "Test settings" link Click on the "Test settings" link The following page should display buttons with icons for the configured Oauth2 providers Click on the button that corresponds to the configured test provider You will now be redirected to the authentication workflow for the configured provider Log in with the test provider. Upon successful log with the test provider you should be redirected to the test results page A message confirm the test was successful should be displayed A table with the key value pairs of data returned from the oAuth2 provider should be displayed.