Outage in Microsoft 365
Users may be unable to view or modify forms in SharePoint Online
Resolved Minor
October 12, 2026 - Started about 24 hours ago
- Lasted about 21 hours
Incident Report
Summary AI Generated
Users were unable to view or modify Nintex and SharePoint Framework (SPFx) Customizer forms in SharePoint Online for approximately 21 hours, encountering blank pages, null target exceptions, and HTTP errors. The root cause was identified as a recent API change in SharePoint Online. Microsoft deployed a fix to remediate the impact.
Title: Users can't view or modify Nintex forms in SharePoint Online and receive an error
User impact: Users can't view or modify Nintex forms in SharePoint Online and receive an error.
Current status: We're investigating a potential issue with SharePoint Online and checking for impact to your organization. We'll provide an update within 30 minutes.
User impact: Users can't view or modify Nintex forms in SharePoint Online and receive an error.
Current status: We're investigating a potential issue with SharePoint Online and checking for impact to your organization. We'll provide an update within 30 minutes.
Components affected
SharePoint OnlineTrusted by 1,000+ teams
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Latest Updates ( sorted recent to last )
about 18 hours ago - at 10/13/2026 12:22AM
Title: Users may be unable to view or modify forms in SharePoint Online
User impact: Users may be unable to view or modify forms in SharePoint Online.
More info: Affected users may encounter multiple potential scenarios with Nintex and SharePoint Framework (SPFx) Customizers forms, including:
- Blank pages
- Null target exceptions
Current status: We’ve isolated a recent API change as the suspected source of the impact. We’ve initiated the process of deploying a fix to confirm our findings and potentially remediate the impact.
Scope of impact: Impact may be specific to any user attempting to view or modify Nintex or SPFx Customizers forms in SharePoint Online.
Next update by: Tuesday, October 13, 2026, at 8:00 PM UTC
about 21 hours ago - at 10/12/2026 08:58PM
Title: Users can't view or modify Nintex forms in SharePoint Online and receive an error
User impact: Users can't view or modify Nintex forms in SharePoint Online and receive an error.
More info: Affected users are encountering multiple potential scenarios, including:
- Blank pages
- 200 HTTP errors
- Null target exceptions
Current status: We're continuing our analysis of the HAR captures to determine the cause of impact.
Scope of impact: Your organization is impacted by this event, and impact is limited to users viewing or modifying Nintex forms in SharePoint Online.
Next update by: Tuesday, October 13, 2026, at 1:30 AM UTC
about 23 hours ago - at 10/12/2026 07:11PM
Title: Users can't view or modify Nintex forms in SharePoint Online and receive an error
User impact: Users can't view or modify Nintex forms in SharePoint Online and receive an error.
More info: Affected users are encountering multiple potential scenarios, including:
- Blank pages
- 200 HTTP errors
- Null target exceptions
Current status: We're expanding our investigation to include HTTP Archive format (HAR) browser captures of the issue in progress to assist in isolating the underlying cause of impact and develop a remediation strategy.
Scope of impact: Your organization is impacted by this event, and impact is limited to users viewing or modifying Nintex forms in SharePoint Online.
Next update by: Monday, October 12, 2026, at 9:00 PM UTC
about 24 hours ago - at 10/12/2026 06:27PM
Title: Users can't view or modify Nintex forms in SharePoint Online and receive an error
User impact: Users can't view or modify Nintex forms in SharePoint Online and receive an error.
More info: Affected users are encountering multiple potential scenarios, including:
- Blank pages
- 200 HTTP errors
- Null target exceptions
Current status: We're reviewing support case details to better understand the impact scenario and determine our next steps.
Scope of impact: Your organization is impacted by this event, and impact is limited to users viewing or modifying Nintex forms in SharePoint Online.
Next update by: Monday, October 12, 2026, at 8:00 PM UTC
about 24 hours ago - at 10/12/2026 06:07PM
Title: Users can't view or modify Nintex forms in SharePoint Online and receive an error
User impact: Users can't view or modify Nintex forms in SharePoint Online and receive an error.
Current status: We're investigating a potential issue with SharePoint Online and checking for impact to your organization. We'll provide an update within 30 minutes.
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