| Attribute | Description |
|---|---|
| id | Unique identifier for the object. |
| transaction_id | Unique identifier for the transaction object. |
| serial_number | The code of the serial number. |
| resource_type | Resource type that the serial number transaction is attached to. |
| resource_id | Unique identifier for the resource. |
| transaction_date | The timestamp when the transaction was created. |
| quantity_change | Item transaction's quantity change, 1 indicates increase of the item in stocks, -1 indicates decrease of the item in stocks |