Field | Description | Required | Format | Condition |
method | Mechanism used by the Cardholder to authenticate to the merchant See table values Codes - merchantAuthentication | No | AN2 | Version 21 or higher (3DSV2) |
date | Date and time in UTC of the buyer authentication Format : DD/MM/YYYY hh:mm:ss | No | AN19 | Version 21 or higher (3DSV2) |