Microsoft 365

Title: Some users may be unable to create new online meetings from shared calendar events in Exchange Online User impact: Users may be unable to create new online meetings from shared calendar events in Exchange Online. Current status: We’re reviewing service telemetry to isolate the root cause of the issue and determine a fix. Scope of impact: Impact is specific to some users attempting to create new online meetings from shared calendar events in Exchange Online. Next update by: Saturday, May 30, 2026, at 11:30 AM UTC

Title: Users may be experiencing significant delays in sending and receiving email messages in Exchange Online User impact: Users may be experiencing significant delays in sending and receiving email messages in Exchange Online More info: Users are experiencing significant delays in sending and receiving email messages, with some email messages remaining undelivered for over an hour. Current status: We’re analyzing support case details to determine the next steps needed to resolve this issue. Scope of impact: Impact is specific to users located in North America and Germany attempting to send and receive email messages in Exchange Online. Next update by: Tuesday, June 02, 2026, at 4:30 PM UTC

Title: Unable to open files in Office for the web. User impact: Users may be unable to open files in Office for the web. More info: Impacted Office Apps include, but are not limited to: - Excel When users open documents, impacted users are shown the following the following error message "Office Online services aren't available right now. We're working to restore all services as soon as possible. Please check back soon." Current status: We're investigating service telemetry to isolate the source of the issue. Scope of impact: This issue could impact any user attempting to access Office Apps using Office for the web or Microsoft Teams. Next update by: Monday, June 1, 2026, at 2:30 PM UTC

Title: Possible delays or problems when accessing SharePoint Online User impact: Some customers have reported issues with accessing the service, or using features in SharePoint Online. Current status: We’re looking into your reported issue and checking for impact to your organization. We'll provide an update within one hour.

Title: Some users may be unable to setup Multi-Factor Authentication (MFA) or access the mysignins.microsoft.com website User impact: Users may be unable to setup MFA or access the mysignins.microsoft.com website. Current status: We've received reports indicating an issue with setting up MFA or accessing the mysignins.microsoft.com page. We're reviewing service health telemetry to help isolate the root cause and determine our next troubleshooting steps. Scope of impact: Some users attempting to setup MFA or accessing the mysignins.microsoft.com website may be impacted. Next update by: Monday, June 01, 2026, at 11:00 AM UTC

Title: Some users may be unable to create new online meetings from shared calendar events in Exchange Online User impact: Users may be unable to create new online meetings from shared calendar events in Exchange Online. Current status: We’re reviewing service telemetry to isolate the root cause of the issue and determine a fix. Scope of impact: Impact is specific to some users attempting to create new online meetings from shared calendar events in Exchange Online. Next update by: Saturday, May 30, 2026, at 11:30 AM UTC

Title: Some admins may be unable to view usage reports in the Microsoft 365 admin center User impact: Admins may be unable to view usage reports in the Microsoft 365 admin center. Current status: We're reviewing support provided information to determine our next troubleshooting steps. Scope of impact: Some admins attempting to view usage reports in the Microsoft 365 admin center may be impacted. Next update by: Monday, May 25, 2026, at 4:30 PM UTC

Title: Potential issues accessing mailboxes via one or more connection methods User impact: Users may experience errors or failures when accessing their mailbox via one or more Exchange Online connection methods. Current status: We're investigating a potential issue and checking for impact to your organization. We'll provide an update within 60 minutes.

Title: Users are unable to access Microsoft 365 services in South America User impact: Some users are unable to access Microsoft 365 services. More info: User reports indicate that impact is primarily to Outlook, though other Microsoft 365 services and features may be affected. Current Status: We are aware of an emerging issue where some users are unable to access Microsoft 365 services. We are investigating the issue and will provide another update within the next 30 minutes.

Title: Some users may not be able to access Exchange Online through Outlook on the web and are returned an error message User impact: Users may not be able to access Exchange Online through Outlook on the web and are returned an error message. More info: Users with access to the Outlook desktop or mobile client may use these to bypass impact while we investigate the issue. Affected users may be returned a "Page not found" error message when attempting to access their Exchange Online mailboxes using Outlook on the web. Current status: We're investigating a potential issue with Exchange Online and checking for impact to your organization. We'll provide an update within 30 minutes.