ReadonlycodeError identifier.
ReadonlylineUnique identifiers of the Line Items for which the Price or TaxRate has changed.
ReadonlymessagePlain text description of the reason for the Price change. For example, "The price or tax of some line items changed at the time of placing the order: $lineItems.".
Readonlyshippingtrue if the ShippingRate has changed.
Returned when the Price or Tax Rate of some Line Items or Shipping Rate of some Shipping Methods changed since they were last added to the Cart.