Klaviyo experienced a notice incident on October 2, 2025 affecting Klaviyo App and Klaviyo API and 1 more component, lasting 16m. The incident has been resolved; the full update timeline is below.
Affected components
Klaviyo AppKlaviyo APIList SubscriptionSignup Forms
Update timeline
- monitoring Oct 02, 2025, 05:43 PM UTC
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.
- resolved Oct 02, 2025, 05:59 PM UTC
This incident has been resolved.