Outlook calendar integrations for scheduling experiencing 10-15% error rates

Incident Report for Greenhouse

Identified

Recruiters and coordinators
- Calendar picker won't load
- Interviewer free/busy missing in the scheduler
- Scheduler page for an existing interview hangs 45s, then errors
- Request Availability modal hangs 45s, then errors
- Scheduling an interview fails to create the Outlook event
- Cancel and reschedule fail
- Room search returns nothing

Candidates
- Self-schedule booking can error out
- Submitting availability can error out

Background sync (no visible error)
- Interviews changed in Outlook aren't imported into Greenhouse
- RSVPs and event changes from Outlook webhooks are lost (no retry)
- Webhook subscription renewals failing; calendars may stop syncing RSVPs if they expire

Posted Nov 12, 2026 - 18:12 UTC

This incident affects: Third-Party Dependencies (Outlook 365).