Here is everything at once. Same $480 order as lesson 5. Slide through the days and watch where the money sits. The numbers use a flat 2.5% fee for simplicity.

Where is the money?Day 0
Sources for this guide

Card network rules change. Time limits, fees, and authorization windows here reflect published rules and provider documentation as of late 2026; confirm details with your processor before you build against them.

Sources

Your progress stays on this device.

Next

Where it breaks.

Six common checkout failures, the symptom you will see in support tickets, and the design fix.

Questions about payments? Email me. I read every note.

Where it breaks: a warning sign over a checkout step, with the fix beside it. ! The fixsymptom, then fix