How to enable Sign in with Apple on my Firebase website

I am trying to enable Sign in with Apple on my Firebase website.

The documentation is just not there. I have followed the Google link:

https://firebase.google.com/docs/auth/web/apple?authuser=0&hl=en

...and the Apple link:

https://developer.apple.com/help/account/configure-app-capabilities/about-sign-in-with-apple

So it seems I need to create a Service ID in Apple Developer. Here's what I did:

  1. Visited Certificates, Identifiers & Profiles
  2. Clicked "Identifiers"
  3. Clicked "+"
  4. Selected "Service IDs"
  5. Entered a Description and an Identifier
  6. Checked "Sign in with Apple" and clicked "Configure"

At this point, there is a greyed-out message: "No App ID is available"

  1. Entered my domain in "Domains and Subdomains"
  2. Entered my Firebase auth callback in "Return URLs"

The "Done" button mentioned in the dialog's instructions does not exist, and the "Next" button is greyed-out.

🤷🏻

How to enable Sign in with Apple on my Firebase website
 
 
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