Users may not be able to load the search bar in SharePoint Online sites

Title: Users may not be able to load the search bar in SharePoint Online sites User impact: Users may not have been able to load the search bar in SharePoint Online sites. Final status: We’ve confirmed that the recent change that we rolled back contained a regression that resulted in this impact. After completing this rollback, we were able to confirm that this action resolved the through service health telemetry and confirmation from a subset of affected users. Scope of impact: This event impacted any user attempting to use the search bar in SharePoint Online. Start time: Thursday, April 30, 2026, at 7:30 AM UTC End time: Thursday, April 30, 2026, at 6:45 PM UTC Root cause: A recent service update contained a regression that resulted in this impact. Next steps:  - We're reviewing the responsible change to better understand what led to the error that resulted in impact and prevent similar future occurrences by improving our service update testing and validation phases. This is the final update for the event.

Title: Users may not be able to load the search bar in SharePoint Online sites User impact: Users may not be able to load the search bar in SharePoint Online sites. Current status: We've discovered a recent change that may be contributing to this event. We’ve rolled it back and our monitoring service health to determine whether this mitigates the event, which will help us confirm our hypothesis on the root cause of impact. Scope of impact: This event impacts any user attempting to use the search bar in SharePoint Online. Next update by: Thursday, April 30, 2026, at 8:30 PM UTC

Title: Users may not be able to load the search bar in SharePoint Online sites User impact: Users may not be able to load the search bar in SharePoint Online sites. Current status: We've reproduced the issue in our environment, and we're reviewing traces collected while the issue is occurring to pinpoint the source of the failure.   Scope of impact: This event impacts any user attempting to use the search bar in SharePoint Online. Next update by: Thursday, April 30, 2026, at 6:30 PM UTC

Title: Possible delays or problems when accessing SharePoint Online User impact: Some customers have reported issues with accessing the service, or using features in SharePoint Online. Current status: We’re looking into your reported issue and checking for impact to your organization. We'll provide an update within one hour.