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Klaviyo is LTV.ai’s deepest integration. Connecting it gives LTV.ai your existing segments, engagement history, and email design, and lets you send campaigns through Klaviyo instead of through LTV.ai.

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Connect

1

Create a private API key in Klaviyo

In Klaviyo, go to Settings > API keys and create a private key with read access to profiles, segments, lists, metrics, campaigns, and templates. The key starts with pk_.
2

Paste it into LTV.ai

Go to Settings > Connections and open Klaviyo. Paste the key. LTV.ai validates it and shows the Klaviyo account name so you can confirm you connected the right one.

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What LTV.ai pulls in

Segments and lists

Your Klaviyo segments become selectable campaign audiences, with live contact counts.

Profiles

Contact records are backfilled on connect, paced to respect Klaviyo’s rate limits.

Engagement history

Five engagement metrics including opens and clicks, with event properties retained for segmentation.

Consent status

Unsubscribes sync in both directions, continuously.
The initial profile and engagement backfill can take a while on large accounts. Segment counts populate first, engagement history fills in behind it.

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Import your existing design

LTV.ai can read your existing Klaviyo campaigns and pull out the pieces worth keeping.
  • Headers and footers. Import them directly as LTV.ai modules so generated campaigns match what your customers already receive. Open Settings > Connections > Klaviyo and choose the header and footer view.
  • Full campaign HTML. Import a past campaign as a saved design and reuse it as a brand reference.
See Headers and footers and Design Library.

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Push a campaign to Klaviyo

Once a draft is finished, use Push to Klaviyo to create it as a campaign in your Klaviyo account. See Send with LTV.ai or Klaviyo for how the two routes compare. The button appears in the draft editor and on proactive idea detail pages. This is the right choice if your sending reputation, compliance review, or reporting already lives in Klaviyo. The alternative is sending through LTV.ai’s own infrastructure, which requires setting up a sending domain. See Set up your sending domain and Scheduling and sending.
Campaigns pushed to Klaviyo are reported on in Klaviyo. LTV.ai attribution covers sends that go through LTV.ai. See Attribution.