Klaviyo Email & SMS Marketing Connector

Key Features

Customer and subscriber profile sync to Klaviyo with consent/opt-in state mapped from Magento newsletter and account data

Order and line-item sync emitting Placed Order, Ordered Product, and refund metrics with images, SKUs, and prices

Started Checkout / Added to Cart event capture via native observers to power abandoned-cart recovery flows

Back-in-stock subscription capture on the PDP plus a restock event fired on cataloginventory salability change

Post-purchase sequence data: fulfillment, shipment, and cancellation signals pushed to Klaviyo metrics

Segment and catalog sync keeping product feeds and Klaviyo list membership in step with Magento

Real-time inbound webhook endpoint for Klaviyo subscribe/unsubscribe and consent updates back into Magento

Asynchronous processing via Magento cron and message queue so large syncs never block storefront requests

Per-store-view Klaviyo API keys and configuration under Stores → Configuration, protected by admin ACL

Built on di.xml dependency injection, service contracts, and plugins/interceptors with zero core-file edits

Works on both Adobe Commerce and Magento Open Source, with multi-website and multi-store-view support

Configurable event allow-list and data-mapping so you control exactly which fields reach Klaviyo profiles

Built to order, done for you

No DIY setup — a working app, built, installed and supported by ECOSIRE.

You order

Start with a one-time build price. We scope it with you at kickoff.

We build & install

ECOSIRE builds, configures and installs it on your Magento 2.

Go live + support

You go live in about 2–4 weeks, with a post-launch support window.

About this Product

The Klaviyo Email & SMS Marketing Connector is a Magento 2 / Adobe Commerce module that ECOSIRE builds, installs, and supports on your own store — it is not an instant Adobe Commerce Marketplace download. We deliver the module under app/code/Ecosire/KlaviyoConnector, wire it to your Klaviyo account, and hand back a working pipeline tested against your real catalog and checkout.

At its core the extension keeps Magento and Klaviyo in lockstep. Customer and subscriber profiles, placed orders, and storefront events are pushed to Klaviyo's APIs so every flow is driven by trustworthy data rather than guesswork. We hook Magento's native event/observer system (checkout_cart_add_product_complete, sales_order_place_after, customer_save_after, cataloginventory_stock_item_save_after) and, where interception is cleaner, plugins/interceptors declared in di.xml, so capture happens without core edits.

Abandoned-cart triggers emit Started Checkout / Added to Cart metrics with line-item, price, and image payloads, letting your Klaviyo flow recover lost carts. Back-in-stock subscriptions are captured on the PDP and a salability change fires the restock event. Post-purchase sequences receive the full order, fulfillment, and refund signals. Segment and catalog sync keeps product feeds and list membership current, and real-time webhook events push Klaviyo subscribe/unsubscribe and consent changes back into Magento.

Heavy syncs run through Magento cron and the message queue so they never block a page render. Configuration lives under Stores → Configuration, gated by admin ACL, with per-store-view API keys for multi-brand setups. The build works on both Adobe Commerce and Magento Open Source, respects GDPR/consent state, and ships with install notes and a short handover call.

What you get

Custom Magento 2 module delivered under app/code/Ecosire/KlaviyoConnector with full source (no encryption)

Installation and setup on your Magento / Adobe Commerce environment, including setup:upgrade and cache/index validation

Klaviyo account wiring: public + private API keys, metric mapping, and verification of test profiles/events

Admin configuration section under Stores → Configuration with ACL roles and per-store-view key support

Sample Klaviyo flow guidance for abandoned-cart, back-in-stock, and post-purchase sequences

Handover documentation plus a short walkthrough call and a defined post-delivery support window

Who this is for

Email/SMS marketer on Klaviyo

Runs lifecycle campaigns in Klaviyo and needs Magento carts, orders, and back-in-stock events flowing in automatically so flows trigger on real customer behavior instead of stale CSV uploads.

Magento store owner / ecommerce manager

Wants abandoned-cart and post-purchase revenue without paying a SaaS per-send tax for sync, and prefers a custom module they own, installed and supported on their own infrastructure.

Agency or in-house Magento developer

Needs a clean, observer- and DI-based integration with no core hacks, source they can read and extend, and ECOSIRE handling the Klaviyo API edge cases and queue/cron plumbing.

How Klaviyo Email & SMS Marketing Connector Compares

Criterion	ECOSIRE	Custom Build	Competitor
Customer, order & event sync to Klaviyo	Included	Included	Included
Abandoned-cart, back-in-stock & post-purchase event capture	Included	Partial support	Included
No Magento core edits (DI, observers, plugins)	Included	Partial support	Included
Built and installed for your exact store & version	Included	Included	Not included
Full unencrypted source you own and can extend	Included	Included	Partial support
Instant self-service download & one-click install	Not included	Not included	Included
Custom field mapping & per-store-view API keys	Included	Partial support	Partial support
Vendor handles Klaviyo API & queue/cron plumbing	Included	Not included	Partial support

Frequently Asked Questions about Klaviyo Email & SMS Marketing Connector

Is this an instant download from the Adobe Commerce Marketplace?

No. This is a build-to-order extension. ECOSIRE builds the module for your specific Magento 2 / Adobe Commerce store, installs it under app/code, wires it to your Klaviyo account, and supports it. There is no instant Marketplace download — you receive a working, tested integration on your own environment.

How long until it's delivered and live?

Typical delivery is about 1–2 weeks from when we receive your Magento admin/SSH access and Klaviyo API keys. A standard sync (customers, orders, abandoned cart, back-in-stock, post-purchase) is at the shorter end; heavy custom field mapping, multi-website setups, or bespoke flow logic can extend it. We confirm a firm timeline before starting.

What ongoing support and updates are included?

Delivery includes a post-launch support window for bug fixes and configuration help. Because you receive full unencrypted source, your own team can also maintain it. We offer ongoing support and compatibility updates (for new Magento minor releases or Klaviyo API changes) as a separate retainer or per-request engagement — quoted transparently, never a forced subscription.

Does it work on Magento Open Source as well as Adobe Commerce?

Yes. The module is built against Magento 2 framework APIs — service contracts, di.xml, observers, cron, and the message queue — that exist in both editions. We confirm your exact version (e.g., 2.4.x) at kickoff and test against it. Adobe Commerce-only features like B2B company accounts are supported on request.

Will it modify Magento core files or conflict with my theme and other extensions?

No core files are edited. The integration uses dependency injection (di.xml), plugins/interceptors, and the event/observer system, so it coexists with your theme and third-party modules. If a conflict with another extension is possible, we identify it during the build and resolve it via plugin sort order or explicit preferences rather than core overrides.

How is customer consent and GDPR handled?

Profiles are synced with their Magento newsletter/consent state mapped to Klaviyo, and the inbound webhook keeps unsubscribe and consent changes in sync both ways. You control which fields are sent via a configurable mapping, and we exclude any data you don't want leaving Magento. Subscriber suppression in Klaviyo is respected on the Magento side.