Q: The authentication between moodle and the repository is not working. What did I do wrong?

A: By default, the Moodle-username is used for the authentication in the repository. In some cases (e.g. single-sign-on via Shibboleth), you may want to change the values for that authentication.
Possible parameters are "id", "username" (Standard), "idnumber" or "email".
The corresponding value for "EDU AUTH_KEY" must be defined in the settings.
If SSO authentication is used, the SSO attributes of the authentication process must be written in a Web session called $ _SESSION [SSO '] so that they can be used for authentication in the repository later. The keys for the values in the session array have to be consistent with that in the repository and set correspondingly in the administration view of the plugin.