Klaviyo experienced a minor incident on June 28, 2025 affecting Analytics and Segmentation, lasting 2h 8m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Jun 28, 2025, 01:50 PM UTC
We are currently investigating a delay in event processing for email & mobile push related events such as delivered, open, and click events. The delay began at 2:00AM (US Eastern). Any email or push message reporting and segments based on email or push events will be outdated. Message sending is not impacted. We are working to resolve this delay in event processing.
- identified Jun 28, 2025, 02:46 PM UTC
We have addressed the underlying issue and have begun processing email message events. We expect to process all of the delayed events with no data loss. The team determined that push message events were not impacted.
- resolved Jun 28, 2025, 03:58 PM UTC
Email message events are now processing in real-time, and the team is replaying any dropped events.