Where checkout changed
Stripe's Agentic Commerce and Universal Commerce Protocol separate products, authorization, tax, payment, orders, and returns into composable steps.
State who authorizes, who pays, how tax is calculated, how order status is tracked, and who takes over when checkout fails.
Do not trust one conversion number
The useful question is no longer whether a purchase happened; it is which step created the hesitation, missing fact, or measurement gap.
Check the event model
- Connect `ai-saas-payment` to authorization, tax, and order-status fields
- Keep the test narrow: one priority product or checkout flow before expanding recommendation, authorization, payment, and support work
What still needs proof
Mixing authorization and fulfillment turns automated checkout into support and compliance risk. Keep the original source open so the announcement, the evidence, and this site's interpretation stay separate.