Shopify

Shopify is the commerce platform a large share of DTC brands run their storefront and checkout on, from first product to nine figures of GMV.

Because checkout happens inside Shopify, it holds the order record every other tool in your stack is trying to reconcile against — which makes it the natural place to capture events from the server rather than the browser.

Shopify hosts the storefront and, critically, the checkout. When a shopper completes an order, Shopify writes an order record and emits webhooks — orders/create, checkouts/update, customers/create — that any connected app can subscribe to. Apps are installed against the store with scoped permissions rather than by editing the theme, and the Admin API exposes orders, customers, products and inventory behind those scopes. Because checkout is Shopify’s, the order record it writes is the closest thing to a source of truth in the stack: every other tool is reconciling against it. The events a browser-side script sees are a subset of what Shopify itself knows.

Shopify already knows the order. What it does not know is who the shopper was before checkout, or whether the person buying today is the person who browsed last week on a different device. Upstack captures Shopify’s events on the server, matches each one against a 750M+ device graph, and attaches the resolved customer before forwarding. That turns Shopify from a system that records orders into a system that feeds every other tool a complete customer — the same event powering your ad platforms, your flows and your warehouse, reconciled rather than reconstructed three times.