---
id: "platform-resources/server-notifications/galaxy-server-notifications"
title: "Galaxy Store Real-time Notifications"
description: "RevenueCat does not require server notifications from the Galaxy Store, however enabling them can speed up webhook and integration delivery times and reduce lag time for Charts."
permalink: "/docs/platform-resources/server-notifications/galaxy-server-notifications"
slug: "galaxy-server-notifications"
version: "current"
original_source: "docs/platform-resources/server-notifications/galaxy-server-notifications.md"
---

> **AI agents:** This is the Markdown version of a RevenueCat documentation page. For the complete documentation index, see [llms.txt](https://www.revenuecat.com/docs/llms.txt).

RevenueCat does not require server notifications from the Galaxy Store, however enabling them can speed up webhook and integration delivery times and reduce lag time for [Charts](https://www.revenuecat.com/docs/dashboard-and-metrics/charts).

:::warning\[Receipt must exist in RevenueCat]
Galaxy Store server notifications only work if the receipt exists in RevenueCat when the event is dispatched from Galaxy Store. If the receipt doesn't exist, the notification will be ignored.
:::

## Setup Instructions

1. Navigate to your **Galaxy app settings** in the RevenueCat dashboard by selecting your app from **Apps**.

2. Expand the **Galaxy Server to Server notification settings** section and copy the endpoint provided under **Samsung IAP Instant Server Notification Service URL**.

![Copy the Samsung IAP Instant Server Notification Service URL from RevenueCat](https://www.revenuecat.com/docs_images/platform-resources/galaxy/galaxy_s2s_copy_url.png "Copy the Samsung IAP Instant Server Notification Service URL from RevenueCat")

3. Go to the [Galaxy Store Seller Portal](https://seller.samsungapps.com/). Open the **App** tab, select **In App Purchase**, select the options button with the three dots, then select **Instant Server Notification Url (ISN)**.

![Navigate to Instant Server Notification Url in the Galaxy Store Seller Portal](https://www.revenuecat.com/docs_images/platform-resources/galaxy/navigate_to_instant_server_notification_url.png "Navigate to Instant Server Notification Url in the Galaxy Store Seller Portal")

4. **Paste** the URL of the endpoint you copied from the RevenueCat dashboard. Optionally, click the **Test** button to verify the connection, then click **Save**.

![Submit the endpoint URL in Galaxy Store Seller Portal](https://www.revenuecat.com/docs_images/platform-resources/galaxy/set_isn_url.png "Submit the endpoint URL in Galaxy Store Seller Portal")

5. If you performed the test, you should see a **Last received at** timestamp for the endpoint in the RevenueCat dashboard.

![Last received timestamp in RevenueCat dashboard](https://www.revenuecat.com/docs_images/platform-resources/galaxy/isn_last_received_timestamp.png "Last received timestamp in RevenueCat dashboard")