Promotions. 5 operations.

Builder is a combo builder as the owner sees it: the page it has at /builders/{slug}, what it counts, and its tiers in order.

BuilderRequest is a combo builder as the owner creates it: the slug of its page, its title and description, what it counts (Kind, count or value), its set (Category, or the request's Products), and its tiers, each from a higher Min and a higher discount than the tier before, all of one kind of discount.

BuilderTier is a tier of a combo builder: from Min, text as the owner entered it (a whole number of items, or a price for a builder by value), it takes Percent off, or Amount.

BuilderTierRequest is a tier of a combo builder as the owner enters it: Min, a whole number of items (or a price with exactly two decimals for a builder by value), and Percent or Amount, one of them.

Money is an amount: in minor units of its ISO 4217 currency, and as the store displays it.

Promotion is a promotion as the owner sees it: a rule with conditions and one effect.

PromotionChange is a promotion as an operation left it, and whether the operation changed it.

PromotionRequest is a promotion the owner creates, every value as text: the effect, one of percent_off, amount_off and free_shipping, with its percent or its amount (text with exactly two decimals); and its conditions, each optional: the cart total it needs, the products it is for by slug, the roles it is for (owner, buyer, guest), and when it starts and ends, each a date such as 2026-10-01 or a date and time such as 2026-10-01T08:00 in store.timezone.

PromotionUse is one use of a coupon: the number of the order that took it, the email it was taken by (an erased order's keeps none of its buyer's), when, and when it was released, absent while it is held (from version 6).

PromotionUseList is a page of a coupon's uses, newest first, how many it has in all, and whether more follow.