- Level
- confirmed
- Worst impact
- Degraded
- Components
- Email Sending, Text Message Sending, WhatsApp Sending, Mobile Push Sending, Processing
- Down Index
- 23of 100
What to do
Check whether you use Klaviyo Email Sending, Text Message Sending, WhatsApp Sending, Mobile Push Sending and 1 more. Check your stack
Paste a package.json, lockfile, Terraform or a list of domains at down.guide/stack to see every provider you depend on.Confirm your retries, queues and scheduled jobs caught up after the 4h 21m it lasted.
Anything that failed between 2026-09-14 21:30 UTC and 2026-09-15 01:51 UTC may need a replay.Subscribe to Klaviyo's feed to hear about the next one first. RSS feed
https://down.guide/feed?provider=klaviyo works in Slack (/feed subscribe), Discord feed bots and any RSS reader.
Updates from Klaviyo 6
- investigating
We are currently investigating a delay in the sending of event-triggered flows. Some customers may see these flows send later than expected. Scheduled campaigns and other areas of Klaviyo are not affected. We will share another update as soon as we have more information.
provider
- investigating
We are continuing to investigate the delays affecting event-triggered flows. Some customers may see these flows send with delays of approximately 90 minutes while we work to restore normal performance. We will provide another update shortly.
provider
- identified
We have identified the cause of the delays affecting event-triggered flows. Affected flows may see delays of approximately 2 hours. Our team is now working on a fix to restore processing back to normal speed. We are working to resolve this as quickly as possible and will share another update shortly.
provider
- identified
Our team is continuing to implement a fix to mitigate the delays affecting event-triggered flows. Delays to affected flows remain at approximately 2 hours. We are working to resolve this as quickly as possible and will share another update shortly.
provider
- monitoring
Event-triggered flow processing is recovering, and our systems are now working through the backlog of delayed messages. Delayed messages will continue to send automatically as the backlog clears. A fix has been deployed and system performance is improving. We continue to monitor closely and appreciate your patience throughout this incident.
provider
- resolved
The backlog of delayed event-triggered flows has been fully processed and all systems are now operating normally. We apologize for the disruption this caused. This incident has been resolved.
provider
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Corrections
None so far.
Something wrong on this page? Report an error or send us a note. Every fix is listed here.
Questions about DWN-adc20cceee
Is Klaviyo still down?
No, this incident was resolved 2026-09-15 01:51 UTC. For Klaviyo's live state, see https://down.guide/klaviyo.
How long did it last?
4h 21m, from 2026-09-14 21:30 UTC to 2026-09-15 01:51 UTC, by the times Klaviyo posted.
What was affected?
Klaviyo named Email Sending, Text Message Sending, WhatsApp Sending, Mobile Push Sending and 1 more.
What caused it?
Klaviyo hasn't published a root cause. If it does, it shows here.
Where does this come from?
Klaviyo's official status page, https://status.klaviyo.com, quoted verbatim. down.guide's own probes, reports and social counts are labeled as ours.