Ship the fix on the lowest rung that fully solves it

Check native Shopify and the theme editor first. If neither fully solves the requirement, compare code, app, and custom routes on ownership, cost, portability, performance, and removal.

Every storefront improvement ends with an implementation choice. The cheapest quote is not always the lowest-cost route. The decision includes who maintains the work, what it adds to the storefront, how it survives a theme change, and what removal costs.

The decision rule: choose the least fragile route that fully solves the written requirement. Check native Shopify and the theme editor first. If neither works, compare theme code, an app, and a custom app or system instead of assuming one universal order.