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 continuing to work on resolving the delays affecting flow processing. Some customers may continue to experience delays in their flows while we work through this. Immediate sends remain unaffected, and delayed messages remain queued while we work to process them. 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 (this change) | Incident update | |
| Incident updated: Flow Sending Delays | Incident update | |
| Incident updated: Flow Sending Delays | Incident update | |
| Incident updated: Flow Sending Delays | 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 |