# Klaviyo: Flow sending delays

- Impact (vendor’s label): minor
- Status: resolved
- Started: 2026-09-21 15:56 UTC · Resolved: 2026-09-21 17:58 UTC · Duration: 2.0 h
- Updates: 6 · Affected components: Email Sending, Flows - Email Sending, Flows - Processing, Processing, Flows - Text Message Sending, Text Message Sending, Flows - Mobile Push Sending, Mobile Push Sending, Flows - WhatsApp Sending, WhatsApp Sending
- [Vendor status page: https://stspg.io/2mv9xl566q98](https://stspg.io/2mv9xl566q98)
- [Company: Klaviyo](https://rewindex.com/company/klaviyo.md)

## Timeline of updates

- **investigating** 2026-09-21 15:56 UTC: We are investigating reports of delays affecting flow message sending. Some customers may see flow messages send later than expected. We will share another update as soon as we have more information.
- **investigating** 2026-09-21 15:56 UTC: We are continuing to investigate this issue.
- **identified** 2026-09-21 16:26 UTC: We have identified the cause of the delays affecting flow message sending and are working on a fix. Some customers may continue to see flow messages send later than expected while we resolve this. We will share another update shortly.
- **monitoring** 2026-09-21 16:42 UTC: Flow message sending is recovering, and delays are clearing. Some customers may still see flow messages send later than expected as remaining processing catches up. We continue to monitor closely and appreciate your patience throughout this incident.
- **monitoring** 2026-09-21 17:43 UTC: Delays have now largely cleared but some customers may still see flow messages send later than expected. We continue to monitor closely and will share another update shortly.
- **resolved** 2026-09-21 17:58 UTC: Flow message sending has fully recovered and is processing at normal speeds. Delayed messages were not lost and have since been delivered. This incident has been resolved.


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Canonical: https://rewindex.com/company/klaviyo/incidents/lgsrzlm9sz0k · Markdown: https://rewindex.com/company/klaviyo/incidents/lgsrzlm9sz0k.md · JSON: https://rewindex.com/api/v1/companies/klaviyo/incidents/lgsrzlm9sz0k · Generated 2026-10-18T10:46:12.574Z