What matters in practice
- 01
Map the order lifecycle before changing checkout.
- 02
Test gateway callbacks and failure states, not only successful card flows.
- 03
Keep business rules in maintainable extensions instead of theme templates.
- 04
Use realistic staging data without copying unnecessary customer secrets.
Evidence boundary
This guidance distinguishes verified engineering practice from unmeasured outcomes. No client result, guaranteed ranking, security guarantee, or performance promise is implied.
Frequently asked questions
What should WooCommerce QA cover?+
Products, cart, checkout, payment callbacks, taxes, coupons, email, accounts, refunds, fulfillment, and relevant integrations.
Can performance work break checkout?+
Yes. Caching and script optimization need explicit exclusions and end-to-end verification.