When the platform becomes the problem

Custom makes sense when Shopify's constraints cause real operational problems: size run complexity exceeding the 100-variant limit, personalisation beyond what a plugin can deliver, a loyalty programme that needs to adjust points on returns, or a returns process that needs to trigger warehouse restocks automatically. If Shopify plus reliable plugins would solve it, a custom build may not be necessary.

Accuracy depends on the data feeding the engine, measurements alone are less accurate than measurements plus purchase history and return/exchange signals. Recommendations improve over time as the customer buys and returns items, and the engine connects to the brand's size chart at the style level because fit varies significantly between styles.

Yes. Lookbook and editorial content management sits in the same platform as the product catalogue, so the marketing team tags products in campaign images and publishes without a developer, with shoppable hotspots updating automatically as stock changes.

A full platform covering catalogue with size run management, size recommendations, lookbook integration, loyalty, and returns management typically runs $30,000 to $80,000. A more focused build covering catalogue, size run management, and checkout with returns integration typically runs $15,000 to $40,000.