Make the Sale: Build, Launch, and Manage E-commerce Stores
Domain 6, Make the Sale: Build, Launch, and Manage E-commerce Stores, tests store setup, product presentation, checkout, payments, shipping, inventory, and conversion optimization. Questions often describe a store problem and ask which change most likely improves completed purchases.
Core rules and concepts
- A product detail page should answer buyer questions: clear photos, price, variants, stock status, delivery estimate, returns, reviews, and a strong add-to-cart action. Product data should be consistent across the store and shopping feeds.
- Checkout should be short, mobile-friendly, and transparent. Offer guest checkout, show shipping and tax early, support common payment methods, and reduce unnecessary fields. Trust signals such as secure checkout and contact details matter.
- Shipping and returns policies affect conversion. Free shipping thresholds, clear delivery dates, and simple returns can reduce abandonment, but hidden costs at checkout increase it.
- Inventory management prevents overselling. Sync stock across sales channels, set low-stock alerts, and plan for peak demand.
- Store SEO and analytics depend on clean structure: crawlable category pages, descriptive URLs, structured data, and e-commerce event tracking for product views, add-to-cart, checkout, and purchase.
Worked example
A store has 1,000 checkout sessions and 600 purchases, so checkout completion is 60 percent and abandonment is 40 percent. The team shortens checkout from three steps to one, adds guest checkout, and shows shipping cost before payment. Completion rises to 70 percent, producing 100 more purchases from the same traffic. At an average order value of 80, that is 8,000 in added revenue before costs. The team checks that the extra orders are not offset by more returns or fraud, then tests the next bottleneck.
Traps that cost marks
Designing only for desktop; surprising buyers with shipping or taxes late; requiring account creation; publishing thin product pages; and launching without purchase tracking or inventory sync.