What This Integration Does
This integration streams Magento customer, order, browse, and catalog data into Klaviyo so behaviour-driven email and SMS run on what shoppers actually do. Orders, refunds, abandoned carts, viewed products, and customer attributes feed Klaviyo’s segmentation and flows. The Magento catalog syncs continuously so product blocks in emails always reflect current price, stock, and imagery.
This is the integration you want if Klaviyo’s native Magento connector is dropping events, missing custom attributes, or struggling with the catalog at scale.
The Workflow
The integration listens to Magento order, customer, and product events through webhooks, transforms the payload into Klaviyo’s metric format, and streams events to Klaviyo within seconds. A “Placed Order” event includes line items with SKU, brand, category path, image URL, and any custom attributes — colour, size, material — so segmentation on category or attribute works without manual setup. “Started Checkout” and “Added to Cart” events fire with the same shape, and the integration handles deduplication so back-end and front-end events do not produce twin metrics.
A specific chain: a Magento store sells home audio. A customer browses three turntables, adds one to cart, abandons. Forty minutes later, the abandoned-cart flow in Klaviyo fires with the turntable as the hero product, plus two related amplifiers pulled from the live Magento catalog feed at send time so prices and stock are accurate. The customer comes back the next day, completes the purchase, and the “Placed Order” event triggers the post-purchase series — a thank you, a setup guide for that specific turntable model, and a cross-sell flow for cartridges three weeks later.
Catalog sync runs on a separate schedule. Product changes in Magento — price updates, stock levels, new images, category re-assignments — are pushed to Klaviyo’s catalog so any email scheduled to send uses the current data, not a stale snapshot.
Before and After
Before, the Magento store relies on Klaviyo’s connector for events but loses custom product attributes, struggles with catalog size, and routinely drops abandoned-cart events on busy days. Marketing segments are based on a subset of available data. The catalog feed is regenerated nightly and sometimes is hours out of date when emails send.
After, every event Klaviyo needs is there with the full attribute set. Catalog data is current within minutes. Abandoned-cart and browse-abandonment flows have the data they need to be relevant. Segment counts agree with Magento reports.
Who Needs This
Magento and Adobe Commerce merchants running serious Klaviyo programmes — typically lifestyle, beauty, food, and electronics brands doing more than five hundred orders a month with a real focus on lifecycle email. The integration is worth building when the native connector’s gaps start costing real revenue.
How We Build This
We build this against the Magento REST and GraphQL APIs and the Klaviyo Track and Catalog APIs. Catalog sync uses Klaviyo’s catalog feed endpoint with incremental updates so large catalogs do not require nightly full pushes. Events stream through a queue with retry and signing so no order is ever lost. See Klaviyo API Integration for the Klaviyo capabilities involved.
Get Magento and Klaviyo Connected
If Klaviyo is your email engine and Magento is your store but the connection between them is unreliable or incomplete, we can build a custom integration that closes the gap.