What This Integration Does
This integration streams BigCommerce store activity into Klaviyo so behavioural email and SMS run on accurate, real-time data. Orders, refunds, abandoned carts, started checkouts, customer profile changes, and the product catalog all flow through. Klaviyo segments and flows respond to BigCommerce events as they happen, not on a delayed export.
For BigCommerce merchants who outgrow the native connector, usually because of multi-storefront complexity, custom fields, or volume, this is the rebuild that makes Klaviyo work properly.
The Workflow
The integration subscribes to BigCommerce webhooks for orders, carts, customers, and products, then maps each event to the Klaviyo metric format with the full attribute set the store has configured. A “Started Checkout” event includes the cart line items, total, applied promotions, and checkout URL so abandoned-cart emails can deep-link back to the shopper’s exact session.
Take a specific chain at a BigCommerce outdoor gear store. A shopper views a tent product page three times across a week, adds it to cart on the fourth visit, then abandons. The integration fires a “Viewed Product” event on each page view and a “Started Checkout” event on the abandonment, all with the tent’s full attribute set: model, sleeps, weight, season rating. Klaviyo’s flow logic looks at the viewed-product history and the checkout abandonment together, fires an abandoned-cart email with the tent as hero and matched sleeping bags, and adds the shopper to the “Tent Considerers” segment for an upcoming spring campaign.
Catalog sync runs separately, pushing BigCommerce product changes to Klaviyo’s catalog so emails always render with current price, stock, and images. For multi-storefront BigCommerce setups, each storefront maps to its own Klaviyo list and catalog so brand separation is preserved.
Before and After
Before, the native BigCommerce-Klaviyo connector handles the basics but drops events under load, misses custom product attributes, and struggles with multi-storefront. Marketing rebuilds segments manually and accepts that some flows just do not fire reliably.
After, every event Klaviyo cares about arrives with the full attribute set. Multi-storefront merchants see clean per-store reporting. Flows fire on time. The catalog stays current within minutes of any BigCommerce change.
Who Needs This
This fits BigCommerce merchants running considered-purchase email programmes (outdoor, lifestyle, electronics, specialty food and drink) where product attributes drive segmentation and the native connector is no longer enough. Often the trigger is a peak season where the connector dropped events and revenue was visibly lost. The same pattern applies if you run a different platform: our Magento to Klaviyo integration covers the equivalent rebuild for Magento stores.
How We Build This
We build this against the BigCommerce APIs (Orders, Customers, Carts, Catalog, Webhooks) and the Klaviyo Track and Catalog APIs. Webhooks are signed and queued, catalog sync uses incremental updates, and multi-storefront mapping is configured per-merchant. See Klaviyo API Integration for the underlying Klaviyo capabilities. If your CRM rather than your email platform is the destination, the BigCommerce to HubSpot integration follows the same approach, and our integrations overview lays out how we scope custom API work across both.
Get BigCommerce and Klaviyo Connected
If you run BigCommerce and Klaviyo and the connector between them is letting your email programme down, we can rebuild it with a custom integration tuned to your store, your storefronts, and your flows.
Written by
Alex
CEO
I’m a software developer and CEO of Digital Royalty, helping growing teams scale their SaaS platforms without losing quality, visibility, or control. I focus on building structured, maintainable systems with clear processes, reporting, and accountability. With over a decade of experience across agency and in-house roles, I specialise in delivering long-term, scalable solutions that support complex, evolving products.
