MC1150679 – Additional Domain Whitelisting Required for Microsoft Whiteboard

Product:

Microsoft 365 for the web, Microsoft 365 suite, Outlook, Teams, Whiteboard

Platform:

Developer, Online, Web, World tenant

Status:

Change type:

Feature update, User impact, Admin impact

Links:

MC1084637

Details:

Summary:
Organizations using explicit domain whitelisting for Microsoft Whiteboard must immediately add whiteboard.svc.cloud.microsoft to their firewall rules to avoid service disruptions, as Whiteboard now operates under the cloud.microsoft domain. No action is needed if *.cloud.microsoft is already whitelisted.

Details:
Introduction
To maintain uninterrupted access to Microsoft Whiteboard, organizations using explicit domain whitelisting must update their firewall configurations. This change supports backend service operations as part of Microsoft's One Consolidated Domain Initiative (OCDI).
When this will happen
This change is effective immediately. We recommend updating your firewall rules as soon as possible to avoid service disruptions.

Change Category:
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Scope:
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Release Phase:

Created:
2025-09-10

updated:
2025-09-10

Task Type

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Docu to Check

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MS How does it affect me

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MS Preperations

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MS Urgency

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MS workload name

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linked item details

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summary for non-techies**

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Direct effects for Operations**

Service Disruption
Failure to whitelist the new domain may lead to Microsoft Whiteboard not loading or sharing features, impacting user productivity.
   - roles: IT Administrator, End User
   - references: https://learn.microsoft.com/microsoft-365/enterprise/urls-and-ip-address-ranges?view=o365-worldwide, https://mc.merill.net/message/MC1084637

User Experience Degradation
Users may experience delays or errors when trying to access Whiteboard features, leading to frustration and decreased efficiency.
   - roles: End User, Team Leader
   - references: https://learn.microsoft.com/microsoft-365/enterprise/urls-and-ip-address-ranges?view=o365-worldwide, https://mc.merill.net/message/MC1084637

Increased Support Tickets
Organizations may see an increase in support requests related to Whiteboard functionality issues, straining IT resources.
   - roles: IT Support, Helpdesk Staff
   - references: https://learn.microsoft.com/microsoft-365/enterprise/urls-and-ip-address-ranges?view=o365-worldwide, https://mc.merill.net/message/MC1084637

Configutation Options**

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Opportunities**

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Potentional Risks**

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IT Security**

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explanation for non-techies**

Imagine you are running a business where you need to send packages to different addresses. You have a list of approved addresses where your packages can be delivered, ensuring they reach the right place without getting lost. Now, suppose one of your suppliers changes their address, and you need to update your list to include this new address to keep receiving their goods.

In the world of IT, this is similar to what is happening with Microsoft Whiteboard. Previously, Microsoft Whiteboard was operating under a specific domain, much like a supplier having a particular address. Now, it has moved to a new domain under Microsoft's One Consolidated Domain Initiative, which is like the supplier changing their address. To continue receiving services without interruption, organizations need to update their "approved address list," known as domain whitelisting, to include this new domain.

For those who already have a broad approval for the entire "neighborhood" of domains under .cloud.microsoft, no changes are needed. However, if your organization only allowed specific "addresses," such as whiteboard.cloud.microsoft, you will need to add the new address whiteboard.svc.cloud.microsoft to your list. This ensures that your Microsoft Whiteboard service continues to function smoothly, without any disruptions in loading or sharing features.

In essence, think of it as updating your contact list to make sure you can still reach your friends after they've moved to a new house. Similarly, updating your firewall rules with the new domain ensures your organization's tools and services remain accessible and operational.