Analytics Events Processing Delays

What to do

• Check whether you use Klaviyo Segments, Profiles, 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 2h 6m it lasted.

  Anything that failed between 2026-10-09 00:10 UTC and 2026-10-09 02:16 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 4

1. identifiedOct 9, 2026, 12:10 AM UTC

   All customers are experiencing delays of up to an hour in analytics events, so Sent and Delivered reporting and received profile events may temporarily appear missing. Campaign and flow sending, along with open and click events, are not affected. We have identified the cause of the delays. We are working to resolve this as quickly as possible and will share another update shortly.

   provider

2. identifiedOct 9, 2026, 1:21 AM UTC

   Delays in analytics events have increased and now reach up to 1 hour and 45 minutes for all customers. Segments that rely on these events may not be up to date while our Engineering team actively processes the backlog. Campaign and flow sending, along with open and click events, remain unaffected. We are working to resolve this as quickly as possible and will share another update shortly.

   provider

3. monitoringOct 9, 2026, 2:09 AM UTC

   Delays have now largely cleared. We continue to monitor closely and will share another update shortly.

   provider

4. resolvedOct 9, 2026, 2:16 AM UTC

   As of 10:10 pm Eastern Time on Oct 8th, all delayed analytics have been processed and new analytics are processing in real time. This incident is now resolved.

   provider

Corrections

None so far.

Something wrong on this page? Report an error or send us a note. Every fix is listed here.