Outage in Klaviyo

Intermittent outages impacting application and sending

Resolved Major
February 07, 2025 - Started 2 months ago - Lasted about 5 hours
Official incident page

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Outage Details

On February 7th at around 8:45 AM (US Eastern Time) we began experiencing an issue impacting access to the application, segmentation, APIs, flows, and messaging sending. The team is currently investigating the issue.
Components affected
Klaviyo Flow Email Sending Klaviyo Segmentation Klaviyo List Subscription Klaviyo App Klaviyo Campaign Email Sending
Latest Updates ( sorted recent to last )
RESOLVED 2 months ago - at 02/07/2025 07:45PM

This incident has been resolved.

MONITORING 2 months ago - at 02/07/2025 05:58PM

All previously delayed messages should now be sent. We will continue to monitor our systems.

IDENTIFIED 2 months ago - at 02/07/2025 03:11PM

We have addressed the underlying issue. Users should no longer experience errors when using the Klaviyo application. Segmentation processing has also resumed. Message sending has resumed and any scheduled campaigns and flow messages will be sent on a delay. APIs are no longer returning errors, and API callers will need to re-try calls that received an error. We will continue to monitor our systems.

IDENTIFIED 2 months ago - at 02/07/2025 03:10PM

We have addressed the underlying issue. Users should no longer experience errors when using the Klaviyo application. Segmentation processing has also resumed. Message sending has resumed and any scheduled campaigns and flow messages will be sent on a delay. APIs are no longer returning errors, and API callers will need to re-try calls that received an error. We will continue to monitor our systems.

INVESTIGATING 2 months ago - at 02/07/2025 02:26PM

On February 7th at around 8:45 AM (US Eastern Time) we began experiencing an issue impacting access to the application, segmentation, APIs, flows, and messaging sending. The team is currently investigating the issue.

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