A general-purpose store sells a product with a few variants and a fixed price. A print product has a custom size, a stock, a finish, a quantity break, artwork and a production route, and the price is a function of all of them. Ecommerce integration is the engineering that lets the store keep doing what it does well, catalogue, cart, payment and customer accounts, while print pricing, the online designer and the production handoff do their part without drift. Among the web-to-print engineering services, it is the one that owns the storefront boundary.
We can scope and build web-to-print integrations for Shopify, WooCommerce, Magento / Adobe Commerce, BigCommerce, Wix and headless storefronts, and we state each platform's constraints before the work is priced. The deciding question is always the same: after cart edits, checkout and order events, do the selected configuration, the charged amount, the artwork version and the production instruction still describe the same job?