Changes / Klaviyo / Flow Sending Delays
Klaviyo: Incident updated: Flow Sending Delays
Summary
Summary pending. The diff below shows exactly what changed.
What changed
Before: not present
After: We are actively working to clear the delayed flow emails and restore normal flow email sending. Some customers may still see flow emails send later than expected while this work completes. Immediate sends remain unaffected. We will share another update shortly.
Compared with the previous archived version of this incident (10-minute polling). View the live incident.
History of this incident
| When (UTC) | Change | Kind |
|---|---|---|
| Incident updated: Flow Sending Delays | Incident update | |
| Incident updated: Flow Sending Delays | Incident update | |
| Incident updated: Flow Sending Delays | Incident update | |
| Incident updated: Flow Sending Delays | Incident update | |
| Incident updated: Flow Sending Delays | Incident update | |
| Incident updated: Flow Sending Delays | Incident update | |
| Incident updated: Flow Sending Delays (this change) | Incident update | |
| Major incident: Flow Sending Delays Klaviyo reported a major degradation in flow message sending starting 2026-10-17 17:01 UTC, with some customers’ flow emails delayed; immediate sends remained unaffected. The incident was still open when archived, after 1 h 4 min at the last update. Klaviyo said it had identified the cause and was working on a fix, without specifying either. | Major incident |