Run one complete mobile order through every handoff
Use a real supported phone and a safe payment route to prove the journey from landing page through fulfillment-facing records.
A desktop preview can show layout. It cannot prove that a customer on a phone can complete the order, receive the right confirmation, and create a record operations can fulfill. The useful artifact is one traceable order, not a collection of screenshots.
Name the environment, payment provider, tester, and permitted transaction route before opening checkout.
The rest of this lesson is available once the Atlas is unlocked.