# Klaviyo: Delay in Real-Time Event Processing

- Impact (vendor’s label): minor
- Status: resolved
- Started: 2025-09-19 14:38 UTC · Resolved: 2025-09-19 20:24 UTC · Duration: 5.8 h
- Updates: 4 · Affected components: Analytics, Profiles, Segmentation, Segments
- [Vendor status page: https://stspg.io/mh31rwg4brts](https://stspg.io/mh31rwg4brts)
- [Company: Klaviyo](https://rewindex.com/company/klaviyo.md)

## Timeline of updates

- **identified** 2025-09-19 14:38 UTC: At around 7 AM Eastern time, we began experiencing delays in real-time event processing. Events may be out of date by up to 3 hours. Flows, Segments, Profiles, Reporting, as well as segment-targeted forms, may be impacted. We are actively working to restore real-time processing and will continue to provide updates here.
- **identified** 2025-09-19 17:07 UTC: A fix has been implemented and we are monitoring the results. We expect real time event processing to be fully restored within 1 hour.
- **monitoring** 2025-09-19 18:42 UTC: Event processing has been restored to real-time. There was no data loss as a result of this incident. We’re continuing to monitor and will post another update once we have fully cleared any backlog of processing data.
- **resolved** 2025-09-19 20:24 UTC: This incident has been resolved.


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Canonical: https://rewindex.com/company/klaviyo/incidents/mbq71wswt1wm · Markdown: https://rewindex.com/company/klaviyo/incidents/mbq71wswt1wm.md · JSON: https://rewindex.com/api/v1/companies/klaviyo/incidents/mbq71wswt1wm · Generated 2026-10-18T09:46:33.878Z