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This incident has been resolved.
From 1:17 PM to 1:32 PM US/Eastern on 10/2/25, we experienced an issue that resulted in errors accessing the Klaviyo app, disruption in event ingestion, and issues submitting signup forms.
A fix has been deployed and system performance is improving. We continue to monitor closely and appreciate your patience throughout this incident.
With IsDown, you can monitor all your critical services' official status pages from one centralized dashboard and receive instant alerts the moment an outage is detected. Say goodbye to constantly checking multiple sites for updates and stay ahead of outages with IsDown.
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