Update - We're continuing to work through repairs to billing as a result of the duplicate sends and will provide credits to the impacted accounts. We'll provide another update once we have more information to share.
Jul 02, 2025 - 18:58 EDT
Identified - From 1:39-2:47PM US/Eastern on 7/2/25, Klaviyo users may have had duplicate flow messages sent to their profiles. Customers received the original message as expected, but may have received duplicate versions in the minutes to follow. Duplicate sending is no longer occurring.
Our Engineering Team is investigating any downstream effects and will provide an update once we have more information.
Jul 02, 2025 - 15:41 EDT
Klaviyo App
Operational
90 days ago
99.99
% uptime
Today
Klaviyo App
Operational
90 days ago
99.99
% uptime
Today
Klaviyo Support
Operational
Klaviyo API
Operational
90 days ago
99.92
% uptime
Today
Email Sending
Operational
90 days ago
99.92
% uptime
Today
Campaign Email Sending
Operational
90 days ago
100.0
% uptime
Today
Flow Email Sending
Operational
90 days ago
99.85
% uptime
Today
Email Deliverability
Operational
Email Content
Operational
SMS Sending
Operational
90 days ago
100.0
% uptime
Today
SMS Sending - Toll Free Number SMS
Operational
90 days ago
100.0
% uptime
Today
SMS Sending - Toll Free Number MMS
Operational
90 days ago
100.0
% uptime
Today
SMS Sending - Short Code SMS
Operational
90 days ago
100.0
% uptime
Today
SMS Sending - Short Code MMS
Operational
90 days ago
100.0
% uptime
Today
SMS Sending - Other
Operational
SMS Deliverability
Operational
SMS Content
Operational
SMS Number Provisioning
Operational
Mobile Push Sending
Operational
90 days ago
100.0
% uptime
Today
Integrations
Operational
90 days ago
100.0
% uptime
Today
Integrations - Shopify
Operational
90 days ago
100.0
% uptime
Today
Integrations - WooCommerce
Operational
90 days ago
100.0
% uptime
Today
Integrations - BigCommerce
Operational
90 days ago
100.0
% uptime
Today
Integrations - Magento
Operational
90 days ago
100.0
% uptime
Today
Integrations - Magento 2
Operational
90 days ago
100.0
% uptime
Today
Integrations - Other
Operational
Analytics
Operational
90 days ago
100.0
% uptime
Today
Segmentation
Operational
90 days ago
100.0
% uptime
Today
Reviews
Operational
90 days ago
100.0
% uptime
Today
Flow Triggering
Operational
List Subscription
Operational
Signup Forms
Operational
Unsubscribe & Preference Pages
Operational
Klaviyo.com
Operational
Klaviyo Help Center
Operational
Klaviyo Developers
Operational
Profiles
?
Operational
Operational
Degraded Performance
Partial Outage
Major Outage
Maintenance
Major outage
Partial outage
No downtime recorded on this day.
No data exists for this day.
had a major outage.
had a partial outage.
Related
No incidents or maintenance related to this downtime.
Resolved -
Email message events are now processing in real-time, and the team is replaying any dropped events.
Jun 28, 11:58 EDT
Identified -
We have addressed the underlying issue and have begun processing email message events. We expect to process all of the delayed events with no data loss.
The team determined that push message events were not impacted.
Jun 28, 10:46 EDT
Investigating -
We are currently investigating a delay in event processing for email & mobile push related events such as delivered, open, and click events. The delay began at 2:00AM (US Eastern). Any email or push message reporting and segments based on email or push events will be outdated. Message sending is not impacted. We are working to resolve this delay in event processing.
Jun 28, 09:50 EDT