Klaviyo: Delays in Event Processing
Affected components: AnalyticsSegmentationSegmentsFlow TriggeringProcessing
Timeline of updates
- investigating
We are currently experiencing delays in event processing. Customers may see delays in event data syncing, event-triggered flows sending, and real-time segmentation.
We are in the process of restoring normal operations and will continue to provide updates here.
- monitoring
We have mitigated the delays and 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
Event processing has been fully restored. This incident is now resolved.
Archive proof
Rewindex commits each version of an incident it captures to a daily checkpoint, chains it to the day before, and has the checkpoint timestamped by FreeTSA and DigiCert. That proves this record existed by then and has not been changed since, by anyone, Rewindex included.
How the archive is checked, and what it cannot prove.
First version captured
In the 2026-10-17 checkpoint, timestamped by FreeTSA and DigiCert on . Record hash
c21a89c2f65fabd7…
Impact, status and times are the vendor’s own, as last archived. View on stspg.io (opens in new tab).
Cite this
Status incident (vendor impact label: minor) posted by Klaviyo, started 2025-07-08 19:20 UTC, resolved after 30 min, 3 update(s).
- Title
- Delays in Event Processing
- Vendor
- Klaviyo
- Date
- URL
- https://rewindex.com/company/klaviyo/incidents/fbvqz42hxw52
Klaviyo profileRecent Klaviyo incidentsAll outages on July 8, 2025Klaviyo in July 2025MarkdownJSON