Terms
Accelerated checkout / express buttons The row of wallet buttons above the payment section — Apple Pay, Google Pay, Shop Pay, PayPal Express. A separate surface from the payment method list, and controlled separately. See hiding express buttons.
Action What a rule does: hide, rename or reorder. One action per rule.
Condition A test a rule applies before it fires — cart subtotal, shipping country, product tag. A rule with none applies to every checkout. All 23 are in the condition reference.
Condition set Which group of conditions a rule can draw from: General, Product-Based, or Advanced & Custom. One set per rule, and switching clears your conditions.
Customization Shopify’s word for a checkout modification. A payment customization changes payment methods; a delivery customization changes shipping. Each active rule is one customization, and Shopify allows 25 of each per store.
Delivery option Shopify’s term for a shipping choice at checkout — a carrier rate, local delivery or pickup. These docs mostly say “shipping method”, which is what the app calls it.
Draft A saved rule that is not running. Rules only apply at checkout when set to Activated.
Hide all A setting that removes every method of a type rather than named ones. Hiding all payment methods prevents checkout completion, which some merchants use deliberately.
Match type Whether all conditions must pass or just one — “All Conditions Pass” (AND) or “Any Condition Passes” (OR). See condition match type.
Method A payment option or shipping rate at checkout. The app matches methods by the exact label your checkout renders, which is why copy-and-paste beats retyping.
Renaming pair An original method label and the new label to show instead. A rename rule can hold several.
Rule One action, on one method type, applied to named methods, optionally gated by conditions.
Rule preview The panel restating your rule in plain English as you build it. Worth reading before saving — it catches inverted logic faster than testing does.
Shopify Functions The platform feature these rules run on. Functions execute inside Shopify’s own infrastructure, so there are no external calls and no effect on checkout speed. They replaced Shopify Scripts.
Shopify Scripts The legacy checkout customization system, superseded by Functions. Guidance written for the Scripts era does not describe what is possible now.
Standard vs Advanced Where a rule was built. Standard rules use the current editor; Advanced ones use the earlier editor for more complex logic, and appear under the Adv. filters in the rules list.