Microsoft Whiteboard Legacy Boards Are Being Retired: Key Dates and Admin Actions

Published: 17 August 2026. August 22, 2026 is the last day Microsoft's migration tooling for legacy Whiteboard boards remains available. Organisations that have not completed migration by that date will have their unmigrated boards permanently deleted on September 5, 2026. Microsoft issued Message Center notification MC1441775 on July 28, 2026 detailing the full retirement timeline for legacy Azure-backed Whiteboard content and the standalone Whiteboard application.

Source: MC1441775 - Microsoft 365 Message Center | Published: July 28, 2026

What is changing and who is affected

Microsoft has been running two Whiteboard storage backends in parallel: an older Azure-backed system for boards created in the standalone app and in older Teams channel experiences, and a newer OneDrive for Business-backed system introduced when Teams began storing meeting whiteboards in users' OneDrive. The retirement covers only the Azure-backed legacy boards.

If your organisation uses Whiteboard primarily through Teams meetings or through the current web experience at whiteboard.microsoft.com, those boards are already OneDrive-backed and are not affected. The boards at risk are those created before the OneDrive migration was rolled out to your tenant, which includes any boards that appeared under the old Azure-based storage model and were not part of a Teams meeting.

Personal Microsoft account users are also affected. They lost the ability to create or edit whiteboards on August 22 and will be unable to view their content after September 5.

The standalone Microsoft Whiteboard desktop and mobile applications are being deprecated on September 14, 2026. After that date, Whiteboard is accessible only through Microsoft Teams.

For context on the earlier storage migration that moved Teams channel whiteboard files into SharePoint, see the related alert on Teams Whiteboard files moving to SharePoint channel sites. That change was about storage location; this retirement is about content that was never migrated at all.

The retirement timeline

What admins should do before the deadlines

The August 22 deadline is within days of this publication. If you have not reviewed your tenant yet, the steps below identify your exposure quickly.

1. Check for migration notifications. In the Microsoft 365 admin centre, review your Message Center for any Whiteboard-specific migration prompts. Microsoft sent targeted notifications to tenants with unmigrated content starting in July 2026.
2. Ask affected users to export immediately. Users who have legacy boards can open whiteboard.microsoft.com and export content as PNG or SVG. This is the only self-service path available after August 22 for any content that has not been formally migrated.
3. Confirm Teams-based boards are safe. Whiteboards created inside Teams meetings and stored in OneDrive for Business are not affected. Users can verify the storage type by checking whether the board appears in their OneDrive under the Whiteboards folder.
4. Update internal guidance after September 14. Remove any references to the standalone Whiteboard app from onboarding materials or help desk documentation. Point users to Whiteboard within Teams for all future whiteboard needs.

Because the deletion on September 5 is permanent and Microsoft has confirmed no administrative restore path, any organisation that has unreviewed Whiteboard content should prioritise user communication before August 22 rather than after.

Frequently Asked Questions

What happens if I do not migrate legacy Whiteboard boards before August 22, 2026?

The migration tooling closes on August 22. Boards that were not migrated will be permanently deleted on September 5, 2026. There is no recovery option after that date, including no second-stage bin or administrative restore.

Does the Whiteboard retirement affect boards used in Microsoft Teams meetings?

No. Whiteboards created within Teams meetings are stored in OneDrive for Business and are not affected. The retirement targets only legacy Azure-backed boards created in the standalone app or in older Teams channel experiences before the OneDrive migration was completed.

Can deleted legacy Whiteboard boards be recovered after September 5, 2026?

No. Microsoft has confirmed that boards deleted in the September 5 purge cannot be recovered through any administrative path. Users and admins should treat the August 22 date as the true hard deadline for preserving any content they need.