> ## Documentation Index
> Fetch the complete documentation index at: https://moengage-unity-sdk-initialization-split.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# How to Configure FCM Authentication for Receiving Push Notifications?

> Configure Firebase Cloud Messaging (FCM) authentication to fix push notification delivery on Android. Resolve sender ID mismatches in MoEngage.

## Problem

Push notifications from the MoEngage dashboard are not received on Android devices due to a sender ID mismatch.

## Instructions

Perform the following steps to configure Firebase Cloud Messaging (FCM) authentication:

1. Open the Firebase console and go to the **Projects settings** section.
2. On the **Service accounts** tab, click **Generate new private key** to download the private key in JSON format, regardless of the selected language.
   <img alt="generate new private key.png" src="https://mintcdn.com/moengage-unity-sdk-initialization-split/XdChKbHRFJsbGnmY/images/moengage_9f36c9.png?fit=max&auto=format&n=XdChKbHRFJsbGnmY&q=85&s=c15f4ef4e0c24c7b22dea666c7650c05" width="1024" height="715" data-path="images/moengage_9f36c9.png" />
3. Open the downloaded private key JSON file and verify that the project\_id matches the one in your google-services.json file in the root directory of your Android project. <img alt="project id google services.png" src="https://mintcdn.com/moengage-unity-sdk-initialization-split/iLc38Cclwkvn6zmu/images/moengage_57c032.png?fit=max&auto=format&n=iLc38Cclwkvn6zmu&q=85&s=cc5c84ace347a1134a6c5824c54320df" width="1024" height="256" data-path="images/moengage_57c032.png" />
   <img alt="project id.png" src="https://mintcdn.com/moengage-unity-sdk-initialization-split/z3l2URE0K8oVtPU3/images/moengage_f89e6f.png?fit=max&auto=format&n=z3l2URE0K8oVtPU3&q=85&s=e93b4ffcc86c2d96930ecef73e24f3f1" width="1024" height="310" data-path="images/moengage_f89e6f.png" />
4. On the left navigation menu in the MoEngage dashboard, go to **Settings** > **Channels** > **Push**.
5. On the Push page, click the **App push** tab, and then click **Android (FCM)** tab.
6. Click **Private key file (Recommended)**.
7. Use the **Choose file** button to upload the private key JSON file and click **Save**.   <img alt="choose file.png" src="https://mintcdn.com/moengage-unity-sdk-initialization-split/7I6Q9SBGr41ReRTp/images/moengage_b4ed21.png?fit=max&auto=format&n=7I6Q9SBGr41ReRTp&q=85&s=5d5f15f9a0c9a16da071dcc3194ba29b" width="1024" height="406" data-path="images/moengage_b4ed21.png" />\
   Now you will see the request body of the report call with the push\_id in the Logcat window of your integrated development environment (IDE), registering the device and project on the MoEngage dashboard.
   <img src="https://mintcdn.com/moengage-unity-sdk-initialization-split/Su-OFSqZFnoKuAhF/images/moengage_ec19ed.png?fit=max&auto=format&n=Su-OFSqZFnoKuAhF&q=85&s=589a4f606fcf04e5aa763888375347c6" alt="register.png" width="1024" height="307" data-path="images/moengage_ec19ed.png" />
8. In the MoEngage dashboard, navigate to **User Profile** > **User Info** > **Reachability** > **Push.** A green tick mark will confirm that the Android device can receive push notifications. <img alt="push reachability edited.png" src="https://mintcdn.com/moengage-unity-sdk-initialization-split/B-H8ECfEYu6COfPW/images/moengage_35ff1e.png?fit=max&auto=format&n=B-H8ECfEYu6COfPW&q=85&s=b3c87a58226790d69e31e6edc416a233" width="1024" height="536" data-path="images/moengage_35ff1e.png" />
9. Click **TEST PUSH**. You will see the **STATUS : SENT** indicating that the device was reachable and the notification was received.
   <img alt="test push edited.png" src="https://mintcdn.com/moengage-unity-sdk-initialization-split/Su-OFSqZFnoKuAhF/images/moengage_ec111b.png?fit=max&auto=format&n=Su-OFSqZFnoKuAhF&q=85&s=e8dc9e331b618b3bb44ccf4a8940acba" width="1024" height="584" data-path="images/moengage_ec111b.png" />
   <img alt="test push 2.png" src="https://mintcdn.com/moengage-unity-sdk-initialization-split/WqoTjr4uhFcFehvW/images/moengage_6c92f4.png?fit=max&auto=format&n=WqoTjr4uhFcFehvW&q=85&s=95afe94265f81bb77e850d41920c54a1" width="640" height="1429" data-path="images/moengage_6c92f4.png" />