I implemented Sign in with Apple in our backend using Django. This backend serves data to the web app and to the mobile app.
After a lot of work, I got these both to work by using a Service ID for the web app and an App ID for the mobile app.
The issue is that a user that creates their account via the mobile app can't login using the web app, the system returns an error informing that that email address is already used by another user.
The Service ID's primary App ID is the one used for the mobile app.
Should I not use two different IDs (Service ID and App ID) to handle login via web app and mobile app? Is there a way to merge those? What am I missing?
Help would be much appreciated!!