Apple announced yesterday that the Sign in with Apple login method for Fortnite would be blocked today. Developer Epic Games advised iOS players to add an alternate login method to their Fortnite account.
Apple login method
Fortnite developer Epic Games writes on Twitter that Apple has promised a postponement. iOS users can still use the Sign in with Apple login method to log in to Fortnite for now. It is not yet known how long this will be possible.
The developer still recommends iOS players change their accounts so that you can log in in multiple ways. Otherwise you will not be able to log in anymore and you will lose your progress and all other data.
- This is how you save your Fortnite account when Sign in with Apple login method is closed