New Multi-region uptime checks and custom-domain status pages
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Is Microsoft 365 Business down?

Check your organization’s service health
Microsoft 365 health varies by organization. Sign in to Microsoft’s admin center to check Exchange Online, Teams and SharePoint.

ServiceAlert cannot access your organization’s private service health. Microsoft’s public page covers issues that prevent access to the admin center.

Organization service health
Requires Microsoft sign-in
Community reports (15 minutes)
See reports below

Report a problem

Select the problem you are experiencing. Your selection submits a report.

Community reports (last 24 hours)

— reports in last 15 min

Community reports load below. They do not establish provider-wide availability.

User reports

0 0 0
24 hours ago 12 hours ago Now

Hourly reports and independent indicators. The current hour is incomplete.

Historical comparison loads with report data.

How to read these charts

Blue bars count reports submitted here. The second chart counts supporting signals from independent sources on its own scale. Outlined, hatched bars preserve older counts whose source cannot be recovered. Neither chart establishes an outage.

A shaded historical range, when available, spans the 10th to 90th percentile of user reports in the same UTC hour over the preceding 28 days. Each hour needs at least 21 comparable days with recorded collection coverage. Missing coverage stays unknown. We also require at least 200 user reports across 14 days, with 20 reports across seven active samples for the compared hour.

These are conservative publication rules, not a prediction or an outage threshold. The current hour is incomplete. Times below use your device time zone; official observations remain separate.

Official provider status over the same hours

Recorded observations; gaps mean no verified observation. Regional issues may affect only part of the service.

Hourly details load with report data.
View hourly data
Local time. The current hour is incomplete. A dash means unavailable.
HourUser reportsIndependentSource unknownTotalHistorical user rangeOfficial observation

Reported problems and sources (last 24 hours)

Down
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Slow
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Errors
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Intermittent
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User reports —
Independent indicators —

Report locations (24 hours)

Report locations load when this map is in view.

Incidents

Incidents and advisories affecting your organization are listed in the Microsoft 365 admin center under Health → Service health. Ask your Microsoft 365 administrator if you do not have access.

How history is counted

Verified percentages require at least 24 daily observations or 576 hourly observations for 30 days, and 1,728 hourly observations for 90 days. Gaps are unknown. Legacy records remain visible but do not contribute to verified percentages. Provider status describes the provider's reported condition, rather than every customer's experience.

Recorded public observations (30 days) Not measured
Organization-specific incident history is available in Microsoft’s admin center. Public observations below do not measure your organization’s uptime.

30-Day Trend

Sep 21Oct 20

34 older daily records preserved. These legacy ServiceAlert observations predate source-at-observation attestation and are shown for continuity only. They are excluded from reliability percentages.

About Microsoft 365 Business

Business productivity suite including Outlook, Teams, SharePoint, OneDrive, Word, Excel, PowerPoint, and enterprise security and compliance tools.

Check whether you are affected

Match the products, regions and times in the provider updates to the issue you are seeing. An incident may affect only part of Microsoft 365 Business.

If your issue is not listed

Report it above and check the provider's support guidance. For a work service, share the error and affected application with your IT team.

Status questions

ServiceAlert cannot access your organization’s private service health. Microsoft’s public page covers issues that prevent access to the admin center.

Incidents and advisories affecting your organization are listed in the Microsoft 365 admin center under Health → Service health. Ask your Microsoft 365 administrator if you do not have access.

Your organization’s incident history is private. Public observations on ServiceAlert cannot establish how often your organization has outages.

Ask your Microsoft 365 administrator to configure service-health notifications in the admin center. ServiceAlert does not deliver alerts for your organization’s private Microsoft 365 incidents.

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