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Email Marketing · Risk Score 100 · Severe

Klaviyo Lawsuits & Legal Trouble

E-commerce email and SMS platform with rapidly-escalating pricing

Legal actions, regulatory complaints, and BBB filings involving Klaviyo that we've documented from public sources.

Lawsuits & Legal Action HIGH Source: News · Jun 12, 2026 Added 1mo ago

California Class Action Lawsuit Filed Against Klaviyo in 2026

Klaviyo is actively defending itself against a California class action suit, as reported by MediaPost in June 2026. The case centers on alleged violations tied to the company's data and messaging practices. Class actions in California's consumer-protection landscape carry significant financial exposure, and this one remains unresolved as of mid-2026. Merchants considering a long-term commitment to the platform should watch this closely.

Our AI scanner searches Reddit, Trustpilot, BBB, and news sources for fresh complaints from the past year, paraphrases what it finds, and adds anything new to this page. Takes up to 90 seconds.

A note on legal complaints

Filings and BBB complaints reflect what customers and counterparties alleged — not what was proven in court. Where possible we link to the original public record so you can read the source yourself. The presence of complaints doesn't establish wrongdoing; the absence doesn't prove innocence.

If you've personally filed a complaint or know of a public action we've missed, tell us.