# ANI check testing You can simulate various outcomes for [Account Name Inquiry (ANI)](https://www.checkout.com/docs/payments/authenticate-payments/card-verification.md#Request_an_account_name_inquiry) checks. To test ANI check results: 1. Send a [card verification request](https://www.checkout.com/docs/payments/authenticate-payments/card-verification.md). 2. Set the `amount` field to `0`. 3. Set the `account_holder.account_name_inquiry` field to `true`. 4. Depending on which outcome you want to simulate, set the following fields to the corresponding values from the table: - `account_holder.first_name` - `account_holder.middle_name` - `account_holder.last_name` | ANI code | Description | First name | Middle name | Last name | | --- | --- | --- | --- | --- | | `full_match` | Full name match | John | | Doe | | `full_match` | Full name match | John | Joe | Doe | | `partial_match` | Partial match on the full name | John | | John | | `partial_match` | Partial match on the full name | Adam | O | Doe | | `no_match` | No match on the full name | James | | Taylor | | `not_performed` | ANI check wasn't performed by the scheme | Carol | | Anne | | `not_supported` | ANI check not Supported by issuer | Lisa | | Rose |