| Name | Type | Description | Notes |
|---|---|---|---|
| legacy_item_id | string | The unique identifier of a listing in legacy/Trading API format. <br/><br/><span class="tablenote"><strong>Note:</strong> Both <b>legacyItemId</b> and <b>legacyTransactionId</b> are needed to identify an order line item. </span> | [optional] |
| legacy_transaction_id | string | The unique identifier of a sale/transaction in legacy/Trading API format. A 'transaction ID' is created once a buyer purchases a 'Buy It Now' item or if an auction listing ends with a winning bidder. <br/><br/><span class="tablenote"><strong>Note:</strong> Both <b>legacyItemId</b> and <b>legacyTransactionId</b> are needed to identify an order line item. </span> | [optional] |