Outage in Microsoft 365
Users may experience delays or failures across multiple Microsoft 365 services
Resolved Minor
July 30, 2025 - Started 1 day ago
- Lasted about 10 hours
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Outage Details
Title: Users may experience delays or failures across multiple Microsoft 365 services
User impact: Users may experience delays or failures across multiple Microsoft 365 services.
More info: Affected impact scenarios include, but aren't limited to:
Exchange Online:
- Unable to access the service using any connection method
Microsoft Teams:
- Unable to load meetings notes during Microsoft Teams meetings
Microsoft Loop:
- Unable to modify sensitivity labels in Loop components
Microsoft Purview:
- Compliance policy sync mail fail
SharePoint Online:
- Certain operations within SharePoint Online
Current status: Current status: This is a continuation of the events previously communicated via TM1125264, MO1125240, and EX1125232.
Our investigation has identified that a recent update to the Substrate data services pipeline contains an error, resulting in impact. We're in the process of reverting this change to remediate impact and will provide a mitigation timeline once available.
Scope of impact: This issue affects Internal Microsoft Service Dog Food (SDF) users only.
Start time: Wednesday, July 30, 2025, at 3:00 PM UTC
Root cause: A recent update to the Substrate data services pipeline contains an error, resulting in impact.
Next update by: Thursday, July 31, 2025, at 2:00 AM UTC
Components affected
Microsoft 365 suiteLatest Updates ( sorted recent to last )
about 20 hours ago - at 07/30/2025 10:28PM
Title: Users may experience delays or failures across multiple Microsoft 365 services
User impact: Users may experience delays or failures across multiple Microsoft 365 services.
More info: Affected impact scenarios include, but aren't limited to:
Exchange Online:
- Unable to access the service using any connection method
Microsoft Teams:
- Unable to load meetings notes during Microsoft Teams meetings
Microsoft Loop:
- Unable to modify sensitivity labels in Loop components
Microsoft Purview:
- Compliance policy sync mail fail
SharePoint Online:
- Certain operations within SharePoint Online
Current status: Current status: This is a continuation of the events previously communicated via TM1125264, MO1125240, and EX1125232.
Our investigation has identified that a recent update to the Substrate data services pipeline contains an error, resulting in impact. We're in the process of reverting this change to remediate impact and will provide a mitigation timeline once available.
Scope of impact: This issue affects Internal Microsoft Service Dog Food (SDF) users only.
Start time: Wednesday, July 30, 2025, at 3:00 PM UTC
Root cause: A recent update to the Substrate data services pipeline contains an error, resulting in impact.
Next update by: Thursday, July 31, 2025, at 2:00 AM UTC
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