By default, coupons no longer apply to invoice items with negative amountsBreaking changes
What’s new
Updates coupons so they no longer apply to negative invoice items by default. Previously, coupons applied to all non-proration invoice items. To allow a coupon to apply to a negative invoice item, pass discountable=true when creating or updating the invoice item.
Impact
Coupons no longer apply to negative invoice items by default, preventing unexpected discounts.