Is Klaviyo down?

We are investigating reports of delays affecting flow message sending. Some customers may see flow messages send later than expected. We will share another update as soon as we have more information.

We have identified the cause of the delays affecting flow message sending and are working on a fix. Some customers may continue to see flow messages send later than expected while we resolve this. We will share another update shortly.

We are seeing early signs of improvement and continue to work towards full recovery. Customers may still see flow messages send later than expected. We will share another update shortly.

Flow message sending is recovering, and delays are continuing to clear. Some customers may still see flow messages send later than expected as remaining processing catches up. We continue to monitor closely and appreciate your patience throughout this incident.

Flow message sending has fully recovered and is processing at normal speeds. Delayed messages were not lost and have since been delivered. This incident has been resolved.

We are currently investigating a delay in the sending of event-triggered flows. Some customers may see these flows send later than expected. Scheduled campaigns and other areas of Klaviyo are not affected. We will share another update as soon as we have more information.

We are continuing to investigate the delays affecting event-triggered flows. Some customers may see these flows send with delays of approximately 90 minutes while we work to restore normal performance. We will provide another update shortly.

We have identified the cause of the delays affecting event-triggered flows. Affected flows may see delays of approximately 2 hours. Our team is now working on a fix to restore processing back to normal speed. We are working to resolve this as quickly as possible and will share another update shortly.

Our team is continuing to implement a fix to mitigate the delays affecting event-triggered flows. Delays to affected flows remain at approximately 2 hours. We are working to resolve this as quickly as possible and will share another update shortly.

Event-triggered flow processing is recovering, and our systems are now working through the backlog of delayed messages. Delayed messages will continue to send automatically as the backlog clears. A fix has been deployed and system performance is improving. We continue to monitor closely and appreciate your patience throughout this incident.

The backlog of delayed event-triggered flows has been fully processed and all systems are now operating normally. We apologize for the disruption this caused. This incident has been resolved.

At 3:25 PM US/Eastern on August 26, 2026, we began experiencing an issue affecting where profiles are not progressing past a time delay action in flows as expected. This is affecting flow sending across all messaging channels, including email, text messaging, push, and WhatsApp. Message sending from campaigns and flows that do not include time delay actions are not impacted. We are actively working on a fix. We will share another update as soon as we have more information.

Our Engineering team has identified the cause of this issue and is working to implement a fix to resolve the remaining impact on sending for flows affected by the time delay issue. Once the fix is rolled out, we will review and repair any impacted flows. We are working to resolve this as quickly as possible and will share another update shortly.

As of 9:30PM US/Eastern, flows have resumed sending as expected across all affected messaging channels. We are processing the backlog of affected flow messages. A fix has been deployed and system performance is improving. We continue to monitor closely and appreciate your patience throughout this incident.

As of 11:26 PM US/Eastern on August 26, 2026, the repair to process affected flow messages from the window of impact has been completed, and flow sending has resumed as expected across all channels. We apologize for the disruption this caused. This incident has been resolved.

We are currently experiencing delays of up to approximately 3 hours in how quickly recent profile property updates are reflected in real-time segments. This means changes to profiles may take longer than usual to update segment membership, which can affect segment-based targeting. Email and SMS sending and other core functions are operating normally. We are actively working to resolve this and will share another update as soon as we have more information.

A fix has been deployed and system performance is improving. Recent profile property updates are now being reflected in real-time segments more quickly, and the delay has improved to approximately 2.5 hours. Changes to profiles may still take slightly longer than usual to update segment membership as the system continues to catch up. Email and SMS sending and other core functions remain unaffected. We continue to monitor closely and appreciate your patience throughout this incident.

Profile property updates are now being reflected in real-time segments at normal speed. Any profile property changes made during the incident window have been reflected in segment membership as expected, and no action is required on your part. This incident has been resolved.

Between 1:15 PM and 2:00 PM US/Eastern on August 12, 2026, some customers experienced errors when scheduling campaigns, and some scheduled campaigns were canceled. If you scheduled a campaign during this window, we recommend checking its status in your account. A fix has been deployed and system performance is improving. We continue to monitor closely and will confirm once fully resolved.

Campaign scheduling has returned to normal operation. If you scheduled a campaign between 1:15 PM and 2:00 PM US/Eastern on August 12, 2026, we recommend checking its status and rescheduling if needed. This incident has been resolved.