> ## Documentation Index
> Fetch the complete documentation index at: https://moengage.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Why Does the "InvalidProviderToken" Error Occur?

> Resolve the InvalidProviderToken error in iOS push by verifying the team ID, key ID, and AuthKey (.p8) file on your MoEngage dashboard settings.

## 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.