SharePoint Framework domain isolated web parts retirement
From Microsoft 365 Message Center Archive by Merill Fernando · Microsoft may not have sent this notice to your tenant.What the notice says
Microsoft’s text, safely structuredUpdated 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.
How this will affect your organization
If your organization still uses domain isolated web parts, after the change has rolled out these will render an error message and stop functioning. We recommend customers to update the impacted web parts as regular web parts and redeploy them.
What you need to do to prepare
To understand whether you have installed domain isolated web parts and granted permissions you can verify if the SharePoint admin center API access page contains permissions listed under the Isolated grouping. If you see permissions listed under Isolated then you can use the instructions described on the domain isolated web part retirement page to discover the solutions, their domain isolated web parts and where those web parts are used. This resource will also contain the needed steps to update the web parts to not use domain isolation.
Note: There will not be an option to extend domain isolated web parts beyond April 2, 2026.
Learn more:
What changed
Between archive captures, newest firstUpdated
FebruaryMarch 2, 2026: This update serves as a final reminder that SharePoint Framework domain isolated web parts will retire and stop workingin 2 months1 month from now (April 2, 2026). After careful consideration and extensive review of …Updated
January 5,February 2, 2026: This update serves as a reminder that SharePoint Framework domain isolated web parts will retire and stop working in32 months from now (April 2, 2026). After careful consideration and extensive review …Updated
October 3, 2025:January 5, 2026: This update serves as a reminder that SharePoint Framework domain isolated web parts will retire and stop working in63 months from now (April 2, 2026). After careful consideration and extensive review …Updated
June 2,October 3, 2025: This update serves as a reminder that SharePoint Framework domain isolated web parts will retire and stop working in106 months from now (April 2, 2026). After careful consideration and extensive review …- Tags
User impact, Admin impact, Retirement→ Updated message, User impact, Admin impact, Retirement
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 …
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