Catalog mode sounds simple: remove the price, replace “Add to cart” with “Request a quote,” and move on. A price may be present in the initial HTML, variation data, a Store API response, structured data, a feed, a REST response, GraphQL, or a cached fragment. Hiding the visible label can therefore create a false sense of security: the page looks price-free while the number is still available to browsers, crawlers, integrations, and curious customers. This article explains how to treat price hiding as a data-exposure problem and how to test it systematically. Start with a threat model Before writing hooks, define what “hidden” means for the store.