Klaviyo: Klaviyo App Access Issues
Affected components: Klaviyo AppKlaviyo App - Klaviyo AppSign-up FormsSignup FormsListsList SubscriptionKlaviyo APIServer-side
Timeline of updates
- monitoring
From 1:17 PM to 1:32 PM US/Eastern on 10/2/25, we experienced an issue that resulted in errors accessing the Klaviyo app, disruption in event ingestion, and issues submitting signup forms.
A fix has been deployed and system performance is improving. We continue to monitor closely and appreciate your patience throughout this incident.
- resolved
This incident has been resolved.
Archive proof
Rewindex commits each version of an incident it captures to a daily checkpoint, chains it to the day before, and has the checkpoint timestamped by FreeTSA and DigiCert. That proves this record existed by then and has not been changed since, by anyone, Rewindex included.
How the archive is checked, and what it cannot prove.
First version captured
In the 2026-10-17 checkpoint, timestamped by FreeTSA and DigiCert on . Record hash
80e310ff445e3e6b…
Impact, status and times are the vendor’s own, as last archived. View on stspg.io (opens in new tab).
Cite this
Status incident (vendor impact label: none) posted by Klaviyo, started 2025-10-02 17:43 UTC, resolved after 16 min, 2 update(s).
- Title
- Klaviyo App Access Issues
- Vendor
- Klaviyo
- Date
- URL
- https://rewindex.com/company/klaviyo/incidents/1lr6z58xsxzb
Klaviyo profileRecent Klaviyo incidentsAll outages on October 2, 2025Klaviyo in October 2025MarkdownJSON