OrderItem.md in ultracart_api-3.9.2

- old
+ new
@@ -47,9 +47,10 @@
 **shipped_by_user** | **String** | Shipped by user | [optional] 
 **shipped_dts** | **String** | Date/time that this item was marked shipped | [optional] 
 **special_product_type** | **String** | Special product type (USPS Media Mail) | [optional] 
 **tags** | [**Array&lt;OrderItemTag&gt;**](OrderItemTag.md) | Tags | [optional] 
 **tax_free** | **BOOLEAN** | True if the item is tax free | [optional] 
+**tax_product_type** | **String** | Type of product for tax purposes (self or UltraCart Managed taxes) | [optional] 
 **taxable_cost** | [**Currency**](Currency.md) |  | [optional] 
 **total_cost_with_discount** | [**Currency**](Currency.md) |  | [optional] 
 **total_refunded** | [**Currency**](Currency.md) |  | [optional] 
 **transmitted_to_distribution_center_dts** | **String** | Date/time that this item was transmitted to the distribution center | [optional] 
 **unit_cost_with_discount** | [**Currency**](Currency.md) |  | [optional] 