User impact: Users may be unable to access various Microsoft 365 apps and services.

More info: Users may notice that some of the affected users are seeing relief as we continue to mitigate the impact.

Impacted services may include but are not limited to the following:
– PowerBI: Users may notice that their service is in read-only mode while we address impact.
– Microsoft Fabric: Users may notice that their service is in read-only mode while we address impact.
– Microsoft Teams: Users may be unable to leverage Microsoft Teams functions including presence, group chats, and user registration.
– Microsoft 365 admin center: Admins may be intermittently unable to access the Microsoft 365 admin center and any action may be delayed if accessible.
– Microsoft Purview: Users will see a delay in events being processed in Microsoft Purview.
– Viva Engage: Users may be unable to access Viva Engage.

Our internal telemetry and customer signals indicate that the following services are recovered:
– Microsoft Defender: Users may be intermittently unable to access the Microsoft Defender portal. Additionally, users may notice delays of up to two hours when raising new detections.
– Microsoft Defender for Endpoint: Admins and users may notice API requests failing and errors when opening Alerts in the Alerts page.
– Microsoft Defender Experts: Users may notice delays in responses from Defender Experts due to delays in ingestion of incidents and alerts.
– Microsoft Intune: Users may experience failures with device check-in, syncing and device enrollment.
– Microsoft OneNote: Users may be unable to sync content, have delays syncing notebooks, or may be unable to open notebooks.
– OneDrive for Business: Users may be unable to access OneDrive for Business content.
– SharePoint Online: Users may be unable to access SharePoint Online sites.
– Windows 365: Admins may be unable to manage existing Cloud PCs or provision new Cloud PCs. End users in the impacted region may not be able to access their Cloud PC.

Current status: We remain committed in treating this event with the highest priority and urgency while we continue to address the lingering impact for the remaining Microsoft 365 apps that are in a degraded state.
We’ll
continue to update our “More info” with the latest status updates for the affected services.

Scope of impact: This issue may be impacting any user attempting to use various Microsoft 365 apps and services.

Start time: Thursday, July 18, 2024, at 9:56 PM UTC

Preliminary root cause: A configuration change in a portion of our Azure backend workloads, caused interruption between storage and compute resources which resulted in connectivity failures that affected downstream Microsoft 365 services dependent on these connections.

Next update by: Friday, July 19, 2024, by 7:30 AM UTC