# Customs Item Model | Name | Data Type | Description | | --- | --- | --- | | `customsItemId` | string | When this field is not submitted in the [Order/CreateOrder call](/apis/shipstation-v1/docs/orders/create-update-order), it will create a new customs line. If this field is included when submitting an order through Order/CreateOrder, then it will look for the corresponding customs line and update any values. **Read Only** field. | | `description` | string | A short description of the CustomsItem | | `quantity` | number | The quantity for this line item | | `value` | number | The value (in USD) of the line item | | `harmonizedTariffCode` | string | The Harmonized Commodity Code for this line item | | `countryOfOrigin` | string | The [**two-letter ISO Origin Country code**](https://www.nationsonline.org/oneworld/country_code_list.htm) where the item originated |