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Klaviyo

Real-time segmentation delays

Partial outage Lasted 30m · started · Klaviyo's page

Level
confirmed
Worst impact
Partial outage
Components
Segments
Regions
us
Down Index
30of 100

What to do

  • Check whether you use Klaviyo Segments in us. 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 30m it lasted.

    Anything that failed between 2026-03-27 04:46 UTC and 2026-03-27 05:15 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 2

  1. monitoring

    Starting around 8:15 PM US Eastern 26th March, we began seeing delays in real-time segment processing for a subset of customers. Segments may be out of date by up to 2.5 hours. Engineering have identified a solution and are working to implement the fix shortly. We will continue to provide updates as real-time segmentation functionality is restored.

    provider

  2. resolved

    Real-time segmentation is processing in real-time, and 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-aeb6ed40b9

Is Klaviyo still down?

No, this incident was resolved 2026-03-27 05:15 UTC. For Klaviyo's live state, see https://down.guide/klaviyo.

How long did it last?

30m, from 2026-03-27 04:46 UTC to 2026-03-27 05:15 UTC, by the times Klaviyo posted.

What was affected?

Klaviyo named Segments in us.

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.