#	Field	Type	Description
1	itemCode	string	Unique code of the item.
2	quantity	number	Quantity of the item.
3	unitPrice	number | null	This is the unit price for the item excluding sales tax before any discount applied.
4	totalDiscount	number | null	The amount of discount that applied on the items.
5	totalPrice	number | null	Total Price with discount applied excluding sales tax.
6	errorCode	number | null	Error code
7	errorText	string | null	The description of the error.