All Systems Operational
Uptime over the past 90 days. View historical uptime.
Scheduler Operational
90 days ago
99.99 % uptime
Today
API Operational
90 days ago
99.99 % uptime
Today
Background Processing Operational
90 days ago
100.0 % uptime
Today
Developer Dashboard Operational
90 days ago
99.99 % uptime
Today
Major Calendar Providers Operational
Apple Operational
Google Operational
Microsoft 365 Operational
Outlook.com Operational
Conferencing Services Operational
GoTo Operational
Zoom Operational
Operational
Degraded Performance
Partial Outage
Major Outage
Maintenance
Major outage
Partial outage
No downtime recorded on this day.
No data exists for this day.
had a major outage.
had a partial outage.

No incidents or maintenance related to this downtime.

Past Incidents
Dec 6, 2024

No incidents reported today.

Dec 5, 2024

No incidents reported.

Dec 4, 2024
US data center scaling problems
Resolved - Our US data center experienced degraded performance today, primarily impacting background processing.

There was an issue with the Amazon Elastic Kubernetes Service (EKS) cluster which affected our ability to scale capacity with demand.

This was resolved by AWS intervening to resolve an issue with our EKS cluster. We will be receiving a RCA from AWS relating to this.

Once we receive AWS's RCA, we will follow our own process to publish a postmortem of this incident.

If you have any queries in the interim, please contact us at support@cronofy.com
Dec 4, 20:30 UTC
Update - Our US data center experienced degraded performance today, primarily impacting background processing.

There was an issue with the Amazon Elastic Kubernetes Service (EKS) cluster which affected our ability to scale capacity with demand.

This was resolved by AWS intervening to resolve an issue with our EKS cluster. We will be receiving a RCA from AWS relating to this.

Once we receive AWS's RCA, we will follow our own process to publish a postmortem of this incident.

If you have any queries in the interim, please contact us at support@cronofy.com
Dec 4, 20:30 UTC
Monitoring - A fix has been implemented in conjunction with AWS support and our ability to scale our resources has returned.

Capacity has then been able to increase to match demand and service levels appear to have returned to normal.

We are continuing to monitor to ensure service remains stable.
Dec 4, 19:52 UTC
Update - We are working through an issue which is preventing our US data center from scaling as normal.

Performance of background processing has been degraded somewhat through the past hour with processing taking up to 60 seconds to be started rather than being near instant.

We are in contact with AWS to resolve the underlying problem.
Dec 4, 19:22 UTC
Update - We are working through an issue which is preventing our US data center from scaling as normal.

Performance of background processing was degrading somewhat through our peak time around 17:00 UTC with processing taking up to 60 seconds to be started rather than being near instant.

As we are now past that peak, we anticipate any impact on background processing to be reduced but still possible until scaling operations return to normal.
Dec 4, 17:23 UTC
Identified - We are working through an issue which is preventing our US data center from scaling as normal. Performance may be degraded as we approach our peak time (around 17:00 UTC) until this is resolved.

This will primarily affect background processing times, with synchronization potentially taking longer than usual.
Dec 4, 16:12 UTC
Dec 3, 2024

No incidents reported.

Dec 2, 2024

No incidents reported.

Dec 1, 2024

No incidents reported.

Nov 30, 2024

No incidents reported.

Nov 29, 2024

No incidents reported.

Nov 28, 2024

No incidents reported.

Nov 27, 2024

No incidents reported.

Nov 26, 2024

No incidents reported.

Nov 25, 2024
Degraded Sync performance for Microsoft 365
Resolved - We have seen a significant improvement in the reliability of calls to Microsoft 365. This has now been close to, or within, the bounds of usual behavior for around an hour.

This aligns with Microsoft's communication against incident MO941162. Microsoft are not saying it is fully resolved but that they have mitigations in place, and are continuing work to fully resolve the problem.

As the impact of this has been minimal for a significant period, we are resolving this incident. We will keep a closer eye on this area until Microsoft call their incident resolved as well.
Nov 25, 22:27 UTC
Update - We have seen some improvement in the reliability of calls to Microsoft 365, but are far from normal service. We remain past the busiest point of the day for Cronofy's services which means we're in a more stable position overall.

We are continuing to monitor our systems and Microsoft incident MO941162. Microsoft are continuing to work on the underlying issue and sync tasks continue to retry automatically.

We will provide a further update by 22:30 UTC.
Nov 25, 21:27 UTC
Update - We have seen little improvement of reliability of calls to Microsoft 365. However, we are now well past the busiest point of the day for Cronofy's services which means we're in a more stable position overall.

We are continuing to monitor our systems and Microsoft incident MO941162. Microsoft are continuing to work on the underlying issue and sync tasks continue to retry automatically.

We will provide a further update by 21:30 UTC.
Nov 25, 20:26 UTC
Update - We have seen little further improvement of reliability of calls to Microsoft 365.

We are continuing to monitor our systems and Microsoft incident MO941162. Sync tasks continue to retry automatically.

We will provide a further update by 20:30 UTC.
Nov 25, 19:29 UTC
Monitoring - Many calls to Microsoft 365 are still failing. We have seen some improvement over the past hour but are still far from a full recovery.

Synchronization of affected calendars will be degraded with failures retried automatically as required.

Microsoft are reporting on this as incident MO941162, with fixes in progress but currently no timeline to resolution.

We are continuing to monitor and mitigate where we can, and will provide another update by 19:30 UTC.
Nov 25, 18:27 UTC
Update - Many Graph API calls to Microsoft 365 are still timing out and we have yet to see any improvement.

We are continuing to monitor the situation and mitigate any impact on operations.

We will update again at 18:30 UTC.
Nov 25, 17:31 UTC
Identified - We have been tracking a degradation in MS Graph connections since approximately 07:30 UTC today.

While most operations have been succeeding in short order, this has worsened to the point where sync is starting to be noticeably degraded for some accounts.

Microsoft are reporting on this as incident "MO941162".

We are continuing to monitor and mitigate where we can, and will provide another update at 17:30 UTC.
Nov 25, 16:27 UTC
Nov 24, 2024

No incidents reported.

Nov 23, 2024

No incidents reported.

Nov 22, 2024

No incidents reported.

← Incident History Powered by Atlassian Statuspage