
Checkout reliability
Test taxes, shipping, payment failures, discount rules, and confirmation messages. Successful payment should produce one accurate order. Check the destination as well as the message that sends people there.
Define the source of truth for stock and how delays or duplicates are resolved. A storefront can oversell when integrations update inconsistently. Identify the most useful correction before adding another feature.
- A written brief
- Named responsibilities
- Agreed review points




