Shopify Functions
Shopify's framework for running custom backend logic, discounts, shipping rules, payment customization, natively within Shopify's checkout and cart, without external servers.
What it means
Functions let merchants and app developers inject custom business logic directly into Shopify's core commerce flows: a discount function, a delivery customization, a payment rule, running server-side within Shopify's own infrastructure rather than through slower external webhooks. As agentic commerce grows, Functions become relevant to how merchants implement agent-specific logic, different pricing or availability rules for agent-initiated purchases, without building separate infrastructure.
Why it matters for Shopify
Shopify merchants can use Functions to implement custom logic for agent-initiated orders, discount eligibility, delivery rules, without needing external servers or slower webhook-based integrations.