I'm trying to implement Apple Login using OAuth through the following URL: https://appleid.apple.com/auth/authorize I use the client_id parameter, which corresponds to the Service ID created under Identifiers in the Apple Developer portal. The problem is: an existing Service ID works fine, but when I create a new Service ID and try to use it, I get an invalid_client error as soon as the authorization window opens. I've double-checked everything, but I can't figure out what the issue is. Has anyone else experienced this or knows the cause? Any help would be greatly appreciated!

0. get Message (Apple) The review was denied for the user to enter a name during the Apple sign-in process. 5. 1.1 Legal: Privacy - Data Collection and Storage As we discussed, it would not be appropriate to require users to provide their name after using Sign in with Apple. Sign in with Apple is designed to be a self-contained, all-in-one login system. With security features like built-in two-factor authentication, you can remove additional sign-up steps so users can focus on your app's content and features. To resolve the issue, it would be appropriate to revise your app so the user is not required to provide additional information or take unnecessary steps after using Sign in with Apple. Apple Login JS official documentation has how to get full name, but Apple Login REST API's official documentation doesn't have information on how to get full name. apple doc link: https://developer.apple.com/documentation/sign_in_with_apple 2. In payload obtained from REST API method, name or user information other than email cannot be checked. stdClass Object (   [iss] => https://appleid.apple.com   [aud] =>   [exp] =>   [iat] =>   [sub] =>   [chash] =>   [email] => --------@privaterelay.appleid.com   [emailverified] => true   [isprivateemail] => true   [authtime] => 1609916359   [noncesupported] => 1 ) 3. My Web Source Code Reference https://github.com/GriffinLedingham/php-apple-signin