Current answer
Klaviyo experienced a minor incident: Flow sending delays. ServiceAlert observed recovery on Sep 21, 2026.
Looking for an update now? Check the current status, or follow Klaviyo for future changes.
Incident Lifecycle
Affected Components
Email Sending
Text Message Sending
WhatsApp Sending
Mobile Push Sending
Processing
Incident Timeline
Monitoring
Delays have now largely cleared but some customers may still see flow messages send later than expected. We continue to monitor closely and will share another update shortly.
Sep 21, 2026 at 5:43 PM UTC
Monitoring
Flow message sending is recovering, and delays are clearing. 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.
Sep 21, 2026 at 4:42 PM UTC
Identified
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.
Sep 21, 2026 at 4:26 PM UTC
Investigating
We are continuing to investigate this issue.
Sep 21, 2026 at 3:56 PM UTC
Investigating
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.
Sep 21, 2026 at 3:56 PM UTC
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