Apple Login Setup guide seems incomplete or old

Hi @lorenzo1

Welcome to the Auth0 Community !

There should be some misconfiguration when trying to set up the Apple connection in this case. For the error “Invalid client id” please make sure that the values set in the ‘Apple Team ID’ and the ‘Client Secret Signing Key’ are the correct values received from Apple.

The error “Invalid web redirect uri” can be caused by an invalid redirect URI on the Apple side and when an App ID is used instead of the Services ID from Apple as a client_id, so please make sure that the below is included in the redirect URI:

  • https://auth0_doman_name/login/callback

You can check out this related articles:

  1. Sign in with Apple Error: invalid_client

  2. Sign in with Apple Results in " Invalid web redirect url" Error

Hope this helps your case, but others as well.
Thanks,
Remus