> ## Documentation Index
> Fetch the complete documentation index at: https://docs.valmi.io/llms.txt
> Use this file to discover all available pages before exploring further.
# Android Push Notifications
> Push notifications are a great way to keep your users engaged and informed about your app. In this guide, you'll learn how to configure a `sync` at `valmi.io` and to display them to your users.
## Introduction
`Firebase Cloud Messaging (FCM)` is the core service in [Firebase](https://firebase.google.com) that enables sending `push notifications` to `Android` devices. It provides a reliable and scalable infrastructure for delivering messages to targeted users or devices. `FCM` supports various messaging types, including notification messages and data messages.
**Prerequisite** To create a sync in valmi.io, it is essential to integrate Firebase into your Android app beforehand.
## Creating Service Account Credentials
> * Go to the [Firebase console](console.firebase.google.com) and select your project.
> * Click on the gear icon located in the top-left corner and navigate to `Project settings`.
> * In the `Service Accounts` tab, scroll down to find the section titled "Firebase Admin SDK" and click on the `Generate New Private Key` button.
> * A dialog box will appear with a warning about the sensitivity of the generated private key. Read the information carefully and click on the `Generate Key` button.
> * The private key file will be downloaded automatically. It is a JSON file containing your Service Account credentials.
## Creating Firebase Connection on valmi.io
* Go to `destinations` on `valmi.io` and click on `+DESTINATION` to create a new destination. Select `Android Push Notifications` as the destination.
* Provide the desired `Connection Name` and uploaded the `Firebase Service Account` details file from the [Firebase console](console.firebase.google.com).
* Click on `Next` to create the destination. If the connection details are valid, the destination will be created successfully.
## Setting up the sync
### Supported Sync Modes
`Android Push Notifications` supports the following destination sync modes. Please refer to the [Destination Sync Modes](/concepts/syncs#destination-sync-modes) for more information on the different destination modes.
| Destination Mode | Supported |
| :--------------- | :-------- |
| Append | ✅ |
### 1. Creation
Go to the `syncs` section in [valmi.io](valmi.io) and click on the `+SYNC` button to initiate the creation of a new sync.
### 2. Warehouse and Destination Selection
* Choose the desired data source for your sync. This could be any of the supported sources.
* Select "Android Push Notifications" as the destination for your sync. And proceed to the `mapping` page.
### 3. Mapping Source Columns to Destination Fields
* On the `Mapping` page, map the source columns to the destination fields. The following table lists the supported destination fields. these fields can be used to create `templated` push notifications.
* Click on the `Next` button. Provide a `name` for your sync and `schedule` it to run at the desired frequency.
### 4. Verifying the `Sync` run
* On the `sync` page
* On [Firebase Console](console.firebase.google.com), navigate to `Cloud Messaging` and click on `View FCM reporting dashboard` to view the push notification statistics.
* On the mobile device ( Demo App ), App should receive the push notification.
