| Name | Type | Description | Notes |
|---|---|---|---|
| merchantid | Number | Identifies the merchant account to perform the void for. | |
| identifier | String | The identifier of the transaction to void. If an empty value is supplied then a `trans_no` value must be supplied. | [optional] |
| transno | Number | The transaction number of the transaction to look up and void. If an empty value is supplied then an identifier value must be supplied. | [optional] |