Field | Description | Mandatory | Type | Condition |
| ChallengeInd | Indicates whether a challenge is requested for this transaction | No | AN2 | 3DSV2 |
| threeDSReqPriorAuthData | Data that documents and supports a specific authentication process. In the current version of the specification this data element is not defined in detail, however the intention is that for each 3DS Requestor Authentication Method, this field carry data that the ACS can use to verify the authentication process. In future versions of the specification, these details are expected to be included | No | AN2048 | 3DSV2 |
| threeDSReqPriorAuthMethod | Mechanism used by the Cardholder to previously authenticate to the 3DS Requestor | No | AN2 | 3DSV2 |
| threeDSReqPriorAuthTimestamp | Date and time in UTC of the prior cardholder authentication | No | AN16 | 3DSV2 |
| browser | Parameters of the shopper web browser. See the table values Object - browser | Conditional | Object | 3DSV2 |
| sdk | Parameters of the shopper application. See the table values Object - sdk | Conditional | Object | 3DSV2 |
Vue d'ensemble
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