What to check before handoff
Start with the product page. Confirm the title, price, selected variant, variant-dependent image, inventory messaging and add-to-cart button all describe the same purchasable item.
Then test cart behavior. The line item should show the selected product and variant, quantity controls should update totals, removal should clear the item, and the cart should preserve expected pricing.
Discount checks should compare the observed cart result with the expected promotion. Checkout handoff should confirm the user is directed toward checkout without completing payment.
Useful example
If a bundle product has Black, Blue and Green variants, select each variant and confirm the image, price and cart line item all update together. A mismatch is exactly the kind of handoff issue CartProof is designed to capture as warning or failure evidence.
Manual review limitations
Automated QA cannot replace final visual review, business-specific acceptance criteria, copy review, analytics checks or real payment testing. Treat storefront QA as repeatable proof, not a guarantee that every issue has been found.