String
Currency the cart bounds and discount amount are expressed in. Omitted when the rule sets neither cart bounds nor a flat discount amount.
Flat amount taken off the shipping price, as a decimal string. Omitted when the rule discounts by percentage instead.
Percentage taken off the shipping price, as a decimal string (e.g. ‘50’ means half off). Omitted when the rule discounts by a flat amount instead.
Float
Cart total at or below which the discount applies. Omitted when the rule has no upper bound.
Float
Cart total at or above which the discount applies. Omitted when the rule has no lower bound.