---
title: Advanced push notifications
slug: data-platform/docs/reactnativesdk-advanced-push-notifications
docTags: 
createdAt: 2026-08-10T12:05:16.000Z
---

:::hint{type="info"}
**Availability**
Only customers onboarded prior to July 15, 2022 have access to the ODP Campaigns  and have the ability to configure push notifications. For more information, contact your Customer Success Manager.
:::

Push notifications can specify custom sounds and custom icons for your notifications to use when displaying to the user.

## Custom notification sounds

Create a sound for your notification and save it in MP3 format. You should not make the sound too long. Then follow the instructions for your platform:

### iOS

1. Add the MP3 of the sound to the Xcode project at the root level.
2. Modify the `Custom Sound` attribute in the **iOS Settings** of ODP Campaign using the full name of the sound (for example, `bell.mp3`).

### Android

1. Add the MP3 of the sound to the Android project at:
   `<root>/android/app/src/main/res/raw/bell.mp3`
2. Under the **Android Options**, add a key/value pair with the key of `soundName` and the value of the filename (for example,`bell.mp3`).

## Custom Icons

On Android, you can specify custom icons in a manner similar to specifying sounds. Place appropriately sized images into the correct folders under `<project>/android/app/src/main/res`.

| Directory      | Dimensions |
| -------------- | ---------- |
| mipmap-mdpi    | 48x48      |
| mipmap-hdpi    | 72x72      |
| mipmap-xhdpi   | 96x96      |
| mipmap-xxhdpi  | 144x144    |
| mipmap-xxxhdpi | 192x192    |

Then give the ODP campaign a new field named `largeIcon` with the name of the image (but without the extension, for example, `icon` instead of `icon.png`).