Why Does the "InvalidProviderToken" Error Occur?

Problem

When sending push notifications in iOS to a reachable user, the “InvalidProviderToken” error occurs.

Explanation

This error typically happens in the following cases:

• The wrong team ID is provided where the AuthKey (.p8 file) is uploaded.
• The wrong key ID is provided where the AuthKey(.p8 file) is uploaded.
• The AuthKey(.p8 file) is revoked in Apple Developer Keys and a new key is generated.

Solution

To resolve this error, the development team must identify and address the abovementioned issues.