checkout
2 free lessons tagged checkout across Business. Each one is a short sequence of focused steps with narration and a five-question quiz at the end — take them in any order, no signup required.
Shopify Functions: Custom Logic Inside Checkout
Flow reacts after events; Functions participate during them. This lesson covers how Shopify Functions let you change discounts, shipping, payment options, and cart validation from inside checkout, why they run as WebAssembly compiled from JavaScript or Rust, and why that architecture replaced the old sandboxed Scripts.
Before the Agent: How a Card Payment Actually Works
You cannot understand agentic checkout without understanding checkout. This lesson builds the payment foundation: the five parties in every card transaction, the authorization-capture-clearing-settlement path, who really pays interchange, why card-not-present fraud shapes everything, and the tokenization idea that agent payments are built on.

