Calendly reported this critical-impact incident on its official status page on Apr 15, 2026, 15:21 UTC. It has since been resolved.
Right now Calendly is operational. Live Calendly status →
DNS issues affecting logins using the Outlook 365 service appear to have been resolved. If you experience any further issues, please reach out to [email protected]
Microsoft engineering teams have identified a DNS issue and have failed over to an alternative DNS provider. The login issues with the Calendly platform appear to be fixed. We are monitoring closely and will provide any further updates as necessary.
The root cause of this issue appears to be an outage in Microsoft's Azure cloud services. We will provide updates as we receive them.
The issue appears to only affect a small subset of users and is intermittent in nature. If you experience problems logging in, please refresh and try again.
We have identified an issue with logins affecting customers using Microsoft's Azure Active Directory service. This can affect users that have signed up for Calendly using the Outlook 365 service and prevent them from logging into the application. Our team has identified a fix and is working on resolving the issue.
Our 5-minute checks didn't record a change in Calendly's overall status around this incident. Smaller or regional incidents often leave a provider's overall status green.
Calendly reported 2 incidents in the last 90 days. A typical incident lasted 11h 49m. See Calendly's uptime and incident history