- Level
- confirmed
- Worst impact
- Degraded
- Components
- Segments, Text Message Sending, Processing, Analytics
- Down Index
- 22of 100
What to do
Check whether you use Klaviyo Segments, Text Message Sending, Processing, Analytics. 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 3h 54m it lasted.
Anything that failed between 2026-05-19 20:36 UTC and 2026-05-20 00:30 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 3
- investigating
SMS event processing is delayed by approximately 2–3 hours. SMS sending is not impacted and recipients are receiving messages at the expected send times. This is impacting when SMS-related events appear in customer accounts, which may cause a delay in SMS event-triggered flows, real-time segments built on SMS event data, and reporting. Our team is actively investigating and we'll provide updates as soon as more information is available.
provider
- identified
We have identified the cause of the issue and SMS event processing is recovering. Delays in processing SMS events are currently around 3 hours and continue to decrease. SMS campaign sending continues to be unaffected and recipients are continuing to receive messages at the expected send times. Customers may continue to see downstream delay in SMS event-triggered flow sending, real-time segments built on SMS event data, and reporting until processing has fully caught up. Customers may also encounter errors when creating and registering RCS agents, and when viewing videos within the platform. We'll provide updates as soon as more information is available.
provider
- resolved
SMS events have been restored to real time processing as of 6:38 PM ET on May 19, 2026. Our Engineering team has monitored performance and see that systems have fully recovered. This incident has been resolved.
provider
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Corrections
None so far.
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Questions about DWN-402aacbc4a
Is Klaviyo still down?
No, this incident was resolved 2026-05-20 00:30 UTC. For Klaviyo's live state, see https://down.guide/klaviyo.
How long did it last?
3h 54m, from 2026-05-19 20:36 UTC to 2026-05-20 00:30 UTC, by the times Klaviyo posted.
What was affected?
Klaviyo named Segments, Text Message Sending, Processing, Analytics.
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.