The checkout promotion banners.
The discounts applied by this promotion. Empty when the discount details are not available.
entityIdIntegerOptional
The ID of the promotion rule. Null for manual discounts.
displayNameStringOptional
The display name of the promotion. Null when not available.
priorityIntegerOptional
Order in which the promotion rule is applied. The lower the value, the higher the priority. Null for manual discounts.