I am trying to implement Apple Login on the web. The language I am using is PHP. I have created the App ID, Service ID, and Key. In the Service ID, I clicked the Configure button for Sign In With Apple and entered the domain and return URL. However, when I click the login button, I only get an "invalid_client" error screen.

I've been fighting this issue for 3 days now. After several failures, I created a new app id and service id yesterday. I checked and entered domain, callback, and login usage clearly, but it keeps returning an error. Can you help me figure out what's wrong? https://appleid.apple.com/auth/authorize?response_type=code&client_id=com.smoothmail.signin&redirect_uri=https%3A%2F%2Fsmoothmail.store%2Fapple-auth&state=4157daa763&scope=name+email&response_mode=form_post

Sign up not completed when I log to an app using apple id. What should i do?

When use apple login, It always failed, other app developer by me is success, but the new app failed, the code is the same, it tips Sign up not Completed

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!

Hello, I am unable to configure Sign in with Apple on my developer account. Whenever I try to: Enable/disable the Sign in with Apple capability in my App ID, or Configure a Service ID for web authentication, the portal does not save my changes. In the browser developer console, I consistently see this error: Request URL: https://developer.apple.com/services-account/v1/bundleIds/XXXXXXXX Request Method: PATCH Status Code: 501 Not Implemented This happens across all browsers (Safari, Chrome, Incognito) and even after clearing cache. It affects my entire account, not just one App ID. I have already tried: Creating a new Service ID → still fails. Creating a new App ID → still fails. Re-enabling the capability → save does not work. Different browsers and devices → same result. Has anyone else experienced this issue, and is there a known fix? Or is this something that Apple Developer Support needs to resolve at the account level?

Hey there, im getting Sign up not complete! even with the official template https://developer.apple.com/documentation/authenticationservices/implementing-user-authentication-with-sign-in-with-apple my developer account is recently renewed, which it has expired for a bit i am using automatic managed signing I have a feel something went wrong my apple developer account id, and also this cause me getting invalid client when sign in with app on web app.

Hi Apple Developer Support, We are implementing Sign in with Apple for our web application hosted on example.com. In the Service ID settings, we have configured the following: Service ID (client_id): com.example.service.local Web Domain: example.com Return URL: https://2db2-121-160-153-88.ngrok-free.app/login/oauth2/code/apple We also tested login via the following URL from our web application: https://appleid.apple.com/auth/authorize?response_mode=form_post&response_type=code&client_id=com.example.service.local&scope=name%20email&state=2f9gMY1rTe12-O7Wbnb7KWe504HQ0KWBSHTKHbg9ZEY=&redirect_uri=https://2db2-121-160-153-88.ngrok-free.app/login/oauth2/code/apple However, we’re receiving an invalid_client error after submission. Our questions: Is it valid to use an ngrok URL like https://2db2-121-160-153-88.ngrok-free.app/... as the Return URL for development and testing? Does the Web Domain need to match the ngrok domain, or is it enough to register the production domain (e.g., example.com)? Is there any propagation delay or approval process after updating the Return URL in the Service ID? Is the client_id strictly required to match the Service ID exactly? We would greatly appreciate any insights or best practices to help us resolve this issue. Thank you in advance!