May 2025

No incidents reported for this month.

April 2025

Disrupted Event Processing for All Customers
This incident has been resolved. Affected unsubscribe events have been replayed. And as noted before, inbound subscriptions during the incident period can not be replayed.
Apr 23, 14:50 - Apr 24, 19:13 EDT
Delays in Email Sending
We can confirm that all delayed emails have caught up as of approximately 7:15 PM US Eastern, and email sending is back to real time.
Apr 23, 18:06 - 19:53 EDT
Issues with Klaviyo Campaigns
As of 6:07pm (US Eastern) all messages that were delayed or failed to send properly during this window have been sent. Marking this incident as Resolved.
Apr 14, 17:27 - 18:08 EDT

March 2025

Delayed event processing for some Shopify users
This incident has been resolved.
Mar 31, 14:13 - 16:00 EDT
Issues with custom profile property availability
This incident has been resolved.
Mar 27, 13:40 - Mar 31, 09:38 EDT
Klaviyo reviews submission issues
Beginning at 1:46 PM US Eastern Time and ending at 5:11 PM US Eastern Time, Klaviyo began experiencing issues with the submission of Klaviyo reviews. Any end user review submissions during this time would have been unsuccessful. The root cause has been identified and addressed, all Reviews functionality has been restored.
Mar 27, 17:24 - 17:24 EDT