💡 Our Technical Review in summary
Summary
- Microsoft is transitioning Whiteboard backend service operations to the cloud.microsoft domain as part of the One Consolidated Domain Initiative (OCDI).
- While the primary application domain whiteboard.cloud.microsoft is already in use, a specific backend service domain is now required for full functionality.
- This update is critical for organizations that utilize restrictive firewall or proxy settings with explicit domain whitelisting.
Impact
- Service Disruptions: Failure to whitelist the required backend domain may result in Microsoft Whiteboard failing to load or specific features, such as sharing, becoming unavailable.
- Scope: This change affects users who access Whiteboard via web and integrated apps if their network traffic is filtered by a firewall that does not support wildcard rules.
- Exemptions: Organizations that have already whitelisted the wildcard domain *.cloud.microsoft are not impacted and require no further action.
- Timeline: This change is effective immediately; backend calls to the new domain are already being initiated.
Action Required
- Update Firewall/Proxy Rules: Ensure the following two domains are explicitly added to your organization’s “Allow” list:
whiteboard.cloud.microsoftwhiteboard.svc.cloud.microsoft
- Verification: Confirm with your network security team that backend traffic to whiteboard.svc.cloud.microsoft is not being intercepted or blocked.
- Strategic Recommendation: Where possible, Microsoft recommends whitelisting the
*.cloud.microsoftwildcard to simplify future transitions under the OCDI framework and prevent similar service interruptions.
Microsoft Official Update
Service: N/A
Category: stayInformed
Severity: normal
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.
How this affects your organization
Microsoft Whiteboard has transitioned to the cloud.microsoft domain under OCDI. While many tenants have already whitelisted *.cloud.microsoft, some organizations using explicit domain whitelisting have only added whiteboard.cloud.microsoft.
To ensure full functionality, including backend service operations, the following domain must also be whitelisted:
whiteboard.svc.cloud.microsoft
Failure to include this domain may result in issues with Whiteboard loading or sharing features. This has been confirmed in multiple support cases where backend calls were blocked by firewall rules.
What you can do to prepare
If your organization uses explicit domain whitelisting, please ensure the following domains are allowed:
whiteboard.cloud.microsoftwhiteboard.svc.cloud.microsoft
Learn more:
- Microsoft 365 URLs and IP address ranges | Microsoft 365 for enterprise | Microsoft Learn
- MC1084637 – Product transitions to the cloud.microsoft domain
No action is required for tenants who have already whitelisted *.cloud.microsoft.
Compliance Considerations
No compliance considerations identified, review as appropriate for your organization.
