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Personalized send time

GA since 8 Jan 2026 major

Email, SMS, push and WhatsApp messages can now be delivered at each recipient's individually optimal time using reinforcement learning.

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klaviyo.com Evidence for GA · 8 Jan 2026
Platform
Klaviyo
Capability
Automated optimization · Experimentation
Vendor's name
Personalized Send Time
First recorded
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Lifecycle history 1 state

  1. GA8 Jan 2026
    First recorded 28 Sep 2026 · recorded from the source history · vendor changelog · klaviyo.com ↗ · archived copy, 26 Oct 2026 ↗

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Automated optimization on other platforms latest first

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