check before: 2026-04-02
Product:
Microsoft 365 admin center, SharePoint
Platform:
Online, Web, World tenant
Status:
Change type:
Admin impact, Retirement, Updated message, User impact
Links:
Details:
Summary:
SharePoint Framework domain isolated web parts will be disabled for new tenants starting April 2, 2025, and fully retired for all tenants by April 2, 2026. After this, these web parts will stop working and show errors. Organizations should update and redeploy affected web parts as regular ones before the deadline.
Details:
Updated March 2, 2026: This update serves as a final reminder that SharePoint Framework domain isolated web parts will retire and stop working 1 month from now (April 2, 2026).
After careful consideration and extensive review of usage data and feedback Microsoft has decided to retire the domain isolated web parts feature in the SharePoint Framework (SPFx).
[When will this happen:]
Starting April 2, 2025, domain isolated web parts will be turned off for any newly created tenants.
Starting April 2, 2026, Microsoft will remove the ability to use domain isolated web parts for existing tenants.
Change Category:
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Scope:
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Release Phase:
Created:
2024-05-14
updated:
2026-03-03
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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summary for non-techies**
Microsoft is retiring domain isolated web parts in SharePoint Framework, with new tenants unable to use them starting April 2, 2025, and complete phase-out by April 2, 2026, requiring organizations to transition to regular web parts to maintain functionality.
Direct effects for Operations**
Retirement of Domain Isolated Web Parts
Existing domain isolated web parts will stop functioning and display errors, leading to disruption in workflows and user access to critical functionalities.
- roles: SharePoint Administrators, End Users
- references: https://aka.ms/retirement/domainisolatedwebparts/support, https://learn.microsoft.com/sharepoint/api-access
Increased Support Requests
Users may experience confusion and increased support requests due to the sudden unavailability of previously functional web parts, impacting IT support resources.
- roles: IT Support Staff, End Users
- references: https://aka.ms/Retirement/domainisolatedwebparts/update
Loss of Custom Functionality
Organizations relying on domain isolated web parts will lose custom functionalities, which may lead to decreased productivity and user frustration.
- roles: SharePoint Developers, End Users
- references: https://aka.ms/retirement/domainisolatedwebparts/support
" target="_blank" rel="nofollow noopener noreferrer">https://aka.ms/retirement/domainisolatedwebparts/support
Need for Redeployment
Organizations will need to invest time and resources to update and redeploy affected web parts, which may lead to project delays and resource allocation issues.
- roles: Project Managers, SharePoint Developers
- references: https://learn.microsoft.com/sharepoint/api-access
User Training Requirements
Users may require additional training to adapt to the new web parts, leading to temporary productivity loss during the transition period.
- roles: Training Coordinators, End Users
- references: https://aka.ms/Retirement/domainisolatedwebparts/update
Configutation Options**
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Potentional Risks**
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IT Security**
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explanation for non-techies**
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change history
| Date | Property | old | new |
| 2026-03-03 | MC Messages | Updated February 2, 2026: This update serves as a reminder that SharePoint Framework domain isolated web parts will retire and stop working in 2 months from now (April 2, 2026).
After careful consideration and extensive review of usage data and feedback Microsoft has decided to retire the domain isolated web parts feature in the SharePoint Framework (SPFx). [When will this happen:] Starting April 2, 2025, domain isolated web parts will be turned off for any newly created tenants. Starting April 2, 2026, Microsoft will remove the ability to use domain isolated web parts for existing tenants. | Updated March 2, 2026: This update serves as a final reminder that SharePoint Framework domain isolated web parts will retire and stop working 1 month from now (April 2, 2026).
After careful consideration and extensive review of usage data and feedback Microsoft has decided to retire the domain isolated web parts feature in the SharePoint Framework (SPFx). [When will this happen:] Starting April 2, 2025, domain isolated web parts will be turned off for any newly created tenants. Starting April 2, 2026, Microsoft will remove the ability to use domain isolated web parts for existing tenants. |
| 2026-03-03 | MC Last Updated | 02/02/2026 17:11:29 | 2026-03-02T19:10:43Z |
| 2026-03-03 | MC Summary | SharePoint Framework domain isolated web parts will be disabled for new tenants starting April 2, 2025, and fully retired for all tenants by April 2, 2026. Organizations must update these web parts to regular ones before then, as they will stop functioning and show errors after retirement. | SharePoint Framework domain isolated web parts will be disabled for new tenants starting April 2, 2025, and fully retired for all tenants by April 2, 2026. After this, these web parts will stop working and show errors. Organizations should update and redeploy affected web parts as regular ones before the deadline. |
| 2026-02-03 | MC Messages | Updated January 5, 2026: This update serves as a reminder that SharePoint Framework domain isolated web parts will retire and stop working in 3 months from now (April 2, 2026).
After careful consideration and extensive review of usage data and feedback Microsoft has decided to retire the domain isolated web parts feature in the SharePoint Framework (SPFx). [When will this happen:] Starting April 2, 2025, domain isolated web parts will be turned off for any newly created tenants. Starting April 2, 2026, Microsoft will remove the ability to use domain isolated web parts for existing tenants. | Updated February 2, 2026: This update serves as a reminder that SharePoint Framework domain isolated web parts will retire and stop working in 2 months from now (April 2, 2026).
After careful consideration and extensive review of usage data and feedback Microsoft has decided to retire the domain isolated web parts feature in the SharePoint Framework (SPFx). [When will this happen:] Starting April 2, 2025, domain isolated web parts will be turned off for any newly created tenants. Starting April 2, 2026, Microsoft will remove the ability to use domain isolated web parts for existing tenants. |
| 2026-02-03 | MC Last Updated | 01/05/2026 18:41:09 | 2026-02-02T17:11:29Z |
| 2026-01-06 | MC Messages | Updated October 3, 2025: This update serves as a reminder that SharePoint Framework domain isolated web parts will retire and stop working in 6 months from now (April 2, 2026).
After careful consideration and extensive review of usage data and feedback Microsoft has decided to retire the domain isolated web parts feature in the SharePoint Framework (SPFx). [When will this happen:] Starting April 2, 2025, domain isolated web parts will be turned off for any newly created tenants. Starting April 2, 2026, Microsoft will remove the ability to use domain isolated web parts for existing tenants. | Updated January 5, 2026: This update serves as a reminder that SharePoint Framework domain isolated web parts will retire and stop working in 3 months from now (April 2, 2026).
After careful consideration and extensive review of usage data and feedback Microsoft has decided to retire the domain isolated web parts feature in the SharePoint Framework (SPFx). [When will this happen:] Starting April 2, 2025, domain isolated web parts will be turned off for any newly created tenants. Starting April 2, 2026, Microsoft will remove the ability to use domain isolated web parts for existing tenants. |
| 2026-01-06 | MC Last Updated | 10/03/2025 16:49:43 | 2026-01-05T18:41:09Z |
| 2025-10-03 | MC Messages | Updated June 2, 2025: This update serves as a reminder that SharePoint Framework domain isolated web parts will retire and stop working in 10 months from now (April 2, 2026).
After careful consideration and extensive review of usage data and feedback Microsoft has decided to retire the domain isolated web parts feature in the SharePoint Framework (SPFx). [When will this happen:] Starting April 2, 2025, domain isolated web parts will be turned off for any newly created tenants. Starting April 2, 2026, Microsoft will remove the ability to use domain isolated web parts for existing tenants. | Updated October 3, 2025: This update serves as a reminder that SharePoint Framework domain isolated web parts will retire and stop working in 6 months from now (April 2, 2026).
After careful consideration and extensive review of usage data and feedback Microsoft has decided to retire the domain isolated web parts feature in the SharePoint Framework (SPFx). [When will this happen:] Starting April 2, 2025, domain isolated web parts will be turned off for any newly created tenants. Starting April 2, 2026, Microsoft will remove the ability to use domain isolated web parts for existing tenants. |
| 2025-10-03 | MC Title | SharePoint Framework domain isolated web parts retirement | (Updated) SharePoint Framework domain isolated web parts retirement |
| 2025-10-03 | MC Last Updated | 06/03/2025 00:25:33 | 2025-10-03T16:49:43Z |
| 2025-10-03 | MC Summary | SharePoint Framework domain isolated web parts will retire on April 2, 2026. New tenants will lose access starting April 2, 2025. Organizations using these web parts should update and redeploy them as regular web parts. Verify usage and follow steps on the provided retirement page. No extensions will be granted. | SharePoint Framework domain isolated web parts will be disabled for new tenants starting April 2, 2025, and fully retired for all tenants by April 2, 2026. Organizations must update these web parts to regular ones before then, as they will stop functioning and show errors after retirement. |
| 2025-06-03 | MC Last Updated | 05/14/2024 00:22:55 | 2025-06-03T00:25:33Z |
| 2025-06-03 | MC Messages | After careful consideration and extensive review of usage data and feedback Microsoft has decided to retire the domain isolated web parts feature in the SharePoint Framework (SPFx).
[When will this happen:] Starting April 2, 2025, domain isolated web parts will be turned off for any newly created tenants. Starting April 2, 2026, Microsoft will remove the ability to use domain isolated web parts for existing tenants. | Updated June 2, 2025: This update serves as a reminder that SharePoint Framework domain isolated web parts will retire and stop working in 10 months from now (April 2, 2026).
After careful consideration and extensive review of usage data and feedback Microsoft has decided to retire the domain isolated web parts feature in the SharePoint Framework (SPFx). [When will this happen:] Starting April 2, 2025, domain isolated web parts will be turned off for any newly created tenants. Starting April 2, 2026, Microsoft will remove the ability to use domain isolated web parts for existing tenants. |
| 2025-06-03 | MC MessageTagNames | User impact, Admin impact, Retirement | Updated message, User impact, Admin impact, Retirement |
| 2025-06-03 | MC Summary | Microsoft is retiring SharePoint Framework domain isolated web parts. Starting April 2, 2025, new tenants won't have this feature, and it will be removed for existing tenants on April 2, 2026. Organizations should update and redeploy affected web parts as regular web parts. | SharePoint Framework domain isolated web parts will retire on April 2, 2026. New tenants will lose access starting April 2, 2025. Organizations using these web parts should update and redeploy them as regular web parts. Verify usage and follow steps on the provided retirement page. No extensions will be granted. |
Last updated 2 weeks ago ago
