# UltracartClient::CartPaymentPurchaseOrder

## Properties

| Name | Type | Description | Notes |
| ---- | ---- | ----------- | ----- |
| **purchase_order_number** | **String** | Purchase order number | [optional] |

## Example

```ruby
require 'ultracart_api'

instance = UltracartClient::CartPaymentPurchaseOrder.new(
  purchase_order_number: null
)
```