| Name | Type | Description | Notes |
|---|---|---|---|
| str | Customer's email address | ||
| amount | str | Amount should be in kobo if currency is NGN, pesewas, if currency is GHS, and cents, if currency is ZAR | |
| authorization_code | str | An authorization code to charge. | [optional] |
| pin | str | 4-digit PIN (send with a non-reusable authorization code) | [optional] |
| reference | str | Unique transaction reference. Only -, .`, = and alphanumeric characters allowed. | [optional] |
| birthday | datetime | The customer's birthday in the format YYYY-MM-DD e.g 2017-05-16 | [optional] |
| device_id | str | This is the unique identifier of the device a user uses in making payment. Only -, .`, = and alphanumeric characters are allowed. | [optional] |
| metadata | str | Stringified JSON object of custom data | [optional] |