Lever experienced a major outage affecting Microsoft Office 365 email and calendar integrations for accounts with Administrator Consent permissions, preventing users from scheduling interviews, viewing availability, or sending emails through the platform. Users encountered error messages including "Could not load events" and "Your email/calendar integration isn't working" due to authentication failures and permission sync issues. The incident was resolved after 20.3 hours when a fix was deployed and monitored to restore email/calendar sync functionality.
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This incident has been resolved.
Issue: Users with Microsoft 365 calendar integrations experienced authentication failures, causing email and calendar sync to stop working. Resetting the calendar cache resulted in an endless loading state.
Impact: Affected users were unable to schedule interviews or view availability in Lever. The issue was limited to accounts using Admin Consent–based Microsoft 365 authentication.
A fix was applied at approximately 4:39 pm PDT on 4/24/2026.
An RCA will be available within 7-10 business days if applicable.
We have identified the issue causing failed Lever user permission syncs with Microsoft Office 365 email/calendar services for users with Administrator provided email/calendar permissions. A fix was deployed at approx. 4:39pm PT on 4/21/2026.
We are actively monitoring the fix to ensure continued email/calendar sync availability.
We are continuing to investigate this issue.
Around 8:50am PT on 4/21/2026 we became aware of an issue where some users Microsoft Office 365 email/calendar services are unable to schedule interview events or send emails in Lever.
The impact appears to be limited to only accounts where Administrator Consent for email/calendar permissions is enabled.
Affected users are currently unable to schedule interviews or send emails in Lever and may see one or more error messages including “Could not load events” and/or “Your email/calendar integration isn't working” related to scheduling and email.
We are currently investigating this issue and will provide updates from our Engineering team as new information becomes available.
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