Outage in Klaviyo
Campaign Sending Delays
Resolved MajorIncident Report
Summary AI Generated
On October 29, 2026, Klaviyo experienced a 2.2-hour incident where campaign sending across email, SMS, and mobile push was delayed, with some scheduled campaigns appearing stuck or showing no recipients. The issue affected a subset of customers between approximately 7:59 AM and 11:45 AM ET. All affected campaigns were repaired and sent, with sending returning to normal by 11:45 AM ET.
Some customers are experiencing delays with campaigns sending, and some scheduled campaigns may appear stuck or show no recipients while they process. We have identified the issue affecting a subset of campaign sending. If a scheduled campaign has not started sending, you can cancel and reschedule it to send again. We are working to resolve this as quickly as possible and will share another update shortly.
Components affected
Klaviyo Mobile Push Sending Klaviyo Campaign Email Sending Klaviyo SMS Sending - OtherTrusted by 1,000+ teams
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Latest Updates ( sorted recent to last )
RESOLVED
14 days ago - at 10/29/2026 05:05PM
Campaign sending has returned to normal, and all affected campaigns have been repaired and sent. Between approximately 7:59 AM and 11:45 AM US/Eastern on October 29, 2026, some customers experienced delays sending campaigns, and some scheduled campaigns may have appeared stuck or shown no recipients while they processed. We're sorry for the disruption this caused. This incident has been resolved.
IDENTIFIED
14 days ago - at 10/29/2026 02:55PM
Some customers are experiencing delays with campaigns sending, and some scheduled campaigns may appear stuck or show no recipients while they process. We have identified the issue affecting a subset of campaign sending. If a scheduled campaign has not started sending, you can cancel and reschedule it to send again. We are working to resolve this as quickly as possible and will share another update shortly.
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