Model: item

[Optional] Category of item; one of: giftCard, parking, physicalGood, reservation, subscription, ticket, other.

[Optional] Brand or manufacturer of the item.

[Optional] Short description or name of the item.

[Optional] Merchant-defined product category.

[Optional] Merchant's unique product or SKU identifier.

[Required] Whether the item is flagged as high risk ("true"/"false").

[Required] Unit price of the item; positive number.

[Optional] Face or retail value of the item; zero or positive.

[Optional] Number of units of this item in the order.

[Conditional] Delivery address reference for this line item; required when shippingMethod is present.

[Optional] Condition of the item; one of: new, openPackage, other, refurbished, used.

[Optional] Carrier for this item; one of: dhl, fedex, ups, usps, other.

[Optional] Shipping company name for this item, when not one of the standard carriers (max 50 chars).

[Required] Shipping speed or method.

[Optional] Carrier tracking number for this item (max 30 chars).

[Optional] Promotion code applied specifically to this item (max 40 chars).

[Optional] Discount applied to this item; zero or positive.

[Optional] Category of the item-level promotion.

[Optional] In-store or curbside pickup method; one of: curbside, dropBox, inStore, other.

[Optional] ISO 8601 timestamp of the scheduled pickup.

[Optional] First name of the person collecting the order (max 40 chars).

[Optional] Last name of the person collecting the order (max 40 chars).