A cardholder makes a $35 purchase, but the merchant never settles the transaction. In <<glossary:Production>>, the authorization would expire after the configured number of days. In <<glossary:CV>>, you must use the <a href="ref:post_expireauthorization" target="_blank">Expire Authorization</a> endpoint to achieve the same result.
### Authorization
Call <a href="ref:post_createsimulatedcardauth" target="_blank">Create Simulated Card Authorization</a> with these parameters:
Parameter | Value |
`accountNo ` | <<glossary:PAN>> or <<glossary:PRN>> |
`amount ` | `35 ` |
`association ` | `visa ` or `mc_auth ` |
`merchantName ` | `Central Clothier ` |
`mcc ` | `5651 ` |
`transType ` | `1 ` or leave blank |
Capture the `auth_id
` for later use.
### Expiry
Call <a href="ref:post_expireauthorization" target="_blank">Expire Authorization</a> with these parameters:
Parameter | Value |
`accountNo ` | PAN or PRN |
`authId ` | `auth_id ` from the previous authorization |
### Transactions created
Call <a href="ref:post_getalltranshistory" target="_blank">Get All Transaction History</a> to see the two ledger entries: