Shopify Scripts let Plus merchants run custom discount, shipping and payment logic. Shopify is now moving that power to Functions, a faster and more flexible system that's available more widely. If your store relies on Scripts, it's time to plan the switch.
What Functions can do
- Custom discount logic, including stacking and complex conditions.
- Custom shipping and delivery rules.
- Payment method customisation and ordering.
- Cart and checkout validation.
Why Functions rather than Scripts
Functions run natively and safely inside Shopify, so they're fast and upgrade-proof, and in many cases they work beyond Shopify Plus. Building on Functions future-proofs the store while Shopify retires the older Scripts approach.
Get the tricky parts right
Projects often stall because an unusual rule — say, applying two discounts to one product — is left until the end. With Functions that kind of custom logic is very doable, provided it's scoped early.
How Codehouse helps
We build custom discount and cart logic using Shopify Functions.
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