Users may be unable to see free and busy information for other users within their organization through Outlook

Microsoft issued an incident report on 7 Jul 2025 (Mon)

Users Affected Any user who attempts to access the Outlook calendar
Start Time 7 Jul 2025 (Mon) 1:43 PM
End Time To be updated
User Impact Users may be unable to see free and busy information for other users within their organization
Incident Details Current status:
Microsoft is identified a portion of infrastructure responsible for portraying free and busy information for users within Exchange Online isn’t processing requests as efficiently as expected and resulting in impact. They have balanced resources on alternative healthy infrastructure and are monitoring internal telemetry to ensure availability recovers without needing any additional remediation steps.

Next update by: 8 Jul 2025 (Tue)

Status Microsoft is fixing the problem

Last update by Microsoft: 7 Jul 2025 (Mon) 2:10 PM