---
title: Configure the webhook registry of Microsoft Exchange Online spoke
description: Configure callback URL for communication between the Workplace Calendar Synchronization application and Microsoft Exchange Online calendar.
locale: en-US
canonical_url: https://www.servicenow.com/docs/r/australia/employee-service-management/workplace-calendar-synchronization/configure-webhook-registry-for-msex.html
release: australia
product: Workplace Calendar Synchronization
classification: workplace-calendar-synchronization
topic_type: task
last_updated: "2026-03-23"
reading_time_minutes: 1
breadcrumb: [Microsoft Exchange Online - Calendar synchronization, Setup Workplace Calendar Synchronization, Configure, Workplace Calendar Synchronization, Workplace Service Delivery, Employee Service Management]
---

# Configure the webhook registry of Microsoft Exchange Online spoke

Configure callback URL for communication between the Workplace Calendar Synchronization application and Microsoft Exchange Online calendar.

## Before you begin

Ensure that the application scope is set to **Microsoft Exchange Online Spoke**. Otherwise, do the following:

1.  Select the Application scope icon \(\[Omitted image "application-scope-globe-icon.png"\] Alt text: Application scope icon.\) on the top-right corner of your Employee Center homepage.
2.  In the drop- down, select the option consisting **Application scope:**.
3.  In the filter navigator, search and select **Microsoft Exchange Online Spoke**.
4.  Refresh the page.

Role required: admin

## Procedure

1.  Navigate to **All** > **Microsoft Exchange Online Spoke** > **Webhook Registry**.

2.  Select the **WSDRS Event Subscription** registry.

    The webhook registry is provided by default with the application.

3.  On the form, select **Callback URL**.

    The **Client State** and **Callback URL** is automatically generated.

4.  Select **Update**.