ItemDigitalItem.md in ultracart_api-3.10.51

- old
+ new
@@ -5,9 +5,10 @@
 ------------ | ------------- | ------------- | -------------
 **click_wrap_agreement** | **String** | Click wrap agreement is presented to the customer before they can purchase your product. | [optional] 
 **creation_dts** | **String** | File creation date | [optional] 
 **description** | **String** | Description of the digital item | [optional] 
 **digital_item_oid** | **Integer** | The Digital item oid is a primary key used internally by UltraCart.  You should not set or change this value.  Doing so will have no effect. | [optional] 
+**external_id** | **String** | External Id useful for syncing with a remote filesystem, this may be an MD5 hash or whatever suits your needs. | [optional] 
 **file_size** | **Integer** | File size | [optional] 
 **import_from_url** | **String** | This url is sourced to create or update a digital file in your digital library.  It is only considered during an insert or update operation. | [optional] 
 **mime_type** | **String** | Mime type associated with the file | [optional] 
 **original_filename** | **String** | Original filename | [optional] 
 **pdf_meta** | [**ItemDigitalItemPdfMeta**](ItemDigitalItemPdfMeta.md) |  | [optional] 