What's a reasonable QA budget or time allocation, as a percentage of total dev time, for checkout testing on a mid-market Shopify Plus store?
Checkout quality assurance (QA) is budgeted by test matrix, not as a percentage of development hours. No published benchmark sets a defensible checkout QA share: the public highlights of the World Quality Report 2025-26 carry none (Capgemini, October 2026). So count combinations to prove: payment methods × discount stacking × tax and duty × customer type × market × fulfillment.
