Klaviyo in Polar: email and SMS revenue that's actually real.

Connect Klaviyo and campaigns, flows, subscriber growth, segments and attributed revenue flow into Polar, stitched to real Shopify orders. Polar re-attributes that revenue with its own first-party Pixel and de-duplicates it against paid and organic, so email stops double-counting orders other channels also claim. And with the Klaviyo Flow Enricher and audience activation, Polar sends first-party events and segments back to Klaviyo too.

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Connect Klaviyo See the setup

Klaviyo → Polar

Klaviyo campaign revenue, re-attributed and counted once.

Campaigns, flows and subscriber growth from Klaviyo re-attributed against your orders, with the Flow Enricher and audience activation, blended into one P&L.

Campaigns & flows

"What did email actually earn?"

Campaigns, flows and segment revenue from Klaviyo, one row per campaign and flow, stitched to real orders.

per campaign & flow

Re-attributed revenue

"Klaviyo over-credits itself."

Polar re-attributes with its own first-party Pixel and de-duplicates against paid and organic.

deduped vs reported

Subscriber growth

"How is my list actually growing?"

Subscriber growth and segment performance, blended into your reporting.

list growth

Flow Enricher

"Can I feed Klaviyo better events?"

Send first-party events, product viewed, added to cart, checkout started, back to Klaviyo.

events -> Klaviyo

Audience activation

"Can I sync a Polar segment to Klaviyo?"

Build a segment in Polar and activate it straight into Klaviyo for targeting.

segments -> Klaviyo

Blended P&L

"Where does email sit against everything?"

Attributed email and SMS revenue blended into contribution margin and net profit.

blended into P&L

Setup Guide

How to Connect Klaviyo to Polar.

01 · What you need

A Polar account with Shopify

A Polar account with Shopify connected. This connector plugs in right next to your stack.

Connect your data →

A Klaviyo API key

A read-only Private API Key from Klaviyo with the accounts scope. Paste it into Polar and it backfills your history automatically.

Open Klaviyo →

The Polar Pixel

Polar's first-party Pixel is what re-attributes Klaviyo revenue and de-duplicates it against paid and organic.

02 · Connect Klaviyo

Add Klaviyo from Connectors ~2 min

One-click add, one read-only key.

In Connectors, click Connect on Klaviyo and paste a read-only Private API Key with the accounts scope, and it backfills your history automatically, campaigns, flows, segments and subscriber growth.

Re-attributed and deduped automatic

Real revenue, not self-credit.

Polar re-attributes Klaviyo revenue with its own first-party Pixel and de-duplicates it against paid and organic, so email stops double-counting orders other channels also claim.

Send data back optional

Flow Enricher + audiences.

Turn on the Klaviyo Flow Enricher to send first-party events (product viewed, added to cart, checkout started) to Klaviyo, and activate audience segments from Polar straight into Klaviyo.

Side by side

Klaviyo counts every click as its own. Polar counts what's real.

Klaviyo reports the revenue it can attribute on last-click, which means it claims orders that paid and organic also claim, and it cannot see the rest of your stack. So email always looks like a hero. Polar re-attributes it against the truth.

Klaviyo on its ownon its own

Klaviyo with Polarblended

Revenue is Klaviyo's last-click number, so it over-credits itself.

Revenue re-attributed with Polar's first-party Pixel, de-duplicated.

Email sits apart from paid, organic and the store.

Email and SMS blended next to paid, organic and Shopify on one P&L.

No de-duplication against orders other channels also claim.

Orders claimed by multiple channels are de-duplicated, so the number is real.

One-directional: no clean way to feed Klaviyo first-party events.

The Flow Enricher and audience activation send first-party data back to Klaviyo.

Featured Use Case

Email revenue, de-duplicated.

Klaviyo will always tell you email is your best channel, because it counts every order it can attribute on last-click, including the ones paid and organic also count. That double-counting makes email look like a hero and quietly inflates the number your team plans around.

Re-attributed, not self-reported

Attributed

Polar's first-party Pixel re-attributes Klaviyo revenue and de-duplicates it against paid and organic. The Flow Enricher pushes first-party events to Klaviyo, and audience segments activate from Polar into Klaviyo.

Ask Polar, in plain language

No SQL

“What's my real Klaviyo-attributed revenue, flow versus campaign, after dedup?” No SQL, no export.

See how the attributed view works

Klaviyo in Polar: email and SMS revenue that's actually real.

Klaviyo campaign revenue, re-attributed and counted once.

How to Connect Klaviyo to Polar.

A Polar account with Shopify

A Klaviyo API key

The Polar Pixel

Add Klaviyo from Connectors ~2 min

Re-attributed and deduped automatic

Send data back optional

Email revenue, deduped and real, both ways.

Klaviyo counts every click as its own. Polar counts what's real.

Klaviyo on its ownon its own

Klaviyo with Polarblended

The Klaviyo connector is only half of it.

Klaviyo

Polar

Ask Polar

Polar MCP

Scheduled reports

Email revenue, de-duplicated.

Re-attributed, not self-reported

Ask Polar, in plain language

15 prompts a connected Klaviyo account unlocks.

Email revenue you can trust.