Outage in Klaviyo
Sync Tasks Failing
Resolved MinorIncident Report
Summary AI Generated
Between approximately 8:09 AM and 11:00 AM ET on July 23, 2026, Klaviyo experienced a ~1.5-hour incident where profile imports via API, CSV upload, and SFTP failed to complete, and newly connected integrations (including WooCommerce, Magento 2, and others) were delayed in starting initial syncs. A fix was identified and deployed, restoring normal import processing by 11:16 AM ET. Failed imports were not automatically reprocessed, so any imports initiated during the impact window must be manually re-run to ensure profiles are created.
Beginning around 8:09 AM US/Eastern on July 23, 2026, profile imports started through the API, CSV upload, or SFTP may fail to complete, and the imported profiles may not be created. New integrations connected during this period may also be delayed in starting their initial sync.
We have identified the cause and are deploying a fix. We are working to resolve this as quickly as possible and will share another update shortly.
Components affected
Klaviyo API Klaviyo List Subscription Klaviyo Profiles Klaviyo Integrations - WooCommerce Klaviyo Integrations - Magento 2 Klaviyo Integrations - OtherTrusted by 1,000+ teams
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Latest Updates ( sorted recent to last )
RESOLVED
2 days ago - at 07/23/2026 04:01PM
The system remains stable, and imports through the API, CSV upload, or SFTP are processing normally. Imports that failed during the incident were not reprocessed automatically. If an import you started between 8:00 AM and 11:00 AM US/Eastern on July 23, 2026 did not complete, please re-run it to ensure those profiles are imported. This incident has been resolved.
MONITORING
2 days ago - at 07/23/2026 03:16PM
Profile imports have recovered, and imports through the API, CSV upload, or SFTP are processing normally again. Integrations connected during the impact window are also resuming their initial syncs. Our team is working to reprocess API imports that failed during the incident. We continue to monitor closely and appreciate your patience throughout this incident.
IDENTIFIED
2 days ago - at 07/23/2026 02:35PM
Beginning around 8:09 AM US/Eastern on July 23, 2026, profile imports started through the API, CSV upload, or SFTP may fail to complete, and the imported profiles may not be created. New integrations connected during this period may also be delayed in starting their initial sync.
We have identified the cause and are deploying a fix. We are working to resolve this as quickly as possible and will share another update shortly.
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