1. In PingOne, go to Integrations > External IDPs.
  2. Locate the appropriate IdP and then click the details icon to expand the IdP.
  3. Click the Connection tab.
  4. Copy the callback URL and paste it in a secure location.
  5. On the Apple Developer site, click Certificates, Identifiers & Profiles.
  6. Select Sign in with Apple and click Configure.
  7. Select the primary App ID and click the + icon.
  8. For Return URLs, paste the value for Callback URL that you copied earlier.
  9. Click Next, and then click Done.