Configuration of Microsoft 365 for Calendars access

This guide explains how to register a new application in Microsoft 365 for use with calendar integrations in zebrix signage. You will create an app named “zebrix signage calendars connector”, add a client secret, and assign it the Calendars.Read application permission. Then you'll share the required details to the zebrix technical team.

1. Go to the Microsoft Entra admin center: https://entra.microsoft.com/
2. In the left menu, select “Applications” > “App registrations”.
3. Click “New registration” at the top of the page.

1. Name: Enter zebrix signage calendars connector
2. Supported account types: Choose “Accounts in this organizational directory only” (default).
3. Leave the Redirect URI empty.
4. Click “Register” to create the application.

1. In the app overview, select “Certificates & secrets”.
2. Under Client secrets, click “New client secret”.
3. Add a description, for example zebrix connector secret.
4. Set an expiration (recommended: 6 or 12 months).
5. Click “Add” and copy the generated value immediately. You will not be able to retrieve it again.

1. Go to “API permissions” in the left menu.
2. Click “Add a permission”.
3. Select Microsoft Graph.
4. Choose Application permissions.
5. In the search bar, type Calendars.Read.
6. Check Calendars.Read under the Calendars section.
7. Click “Add permissions”.
8. Back on the API permissions page, click “Grant admin consent” and confirm.

You now have:

1. Registered an application named “zebrix signage calendars connector”.
2. Generated a client secret to authenticate your backend app.
3. Granted Calendars.Read application-level permission to access calendars in your organization.

Use the Application (client) ID, Directory (tenant) ID, and Client secret in your integration code to authenticate using the OAuth 2.0 client credentials flow.