
Checkout reliability
Test taxes, shipping, payment failures, discount rules, and confirmation messages. Successful payment should produce one accurate order. Try the main customer task on a phone before signing off.
Define the source of truth for stock and how delays or duplicates are resolved. A storefront can oversell when integrations update inconsistently. Record the decision as well as the numbers behind it.
- A written brief
- Named responsibilities
- Agreed review points




