vads_threeds_eci
| Description | Indicates the E-Commerce index. It is populated by the 3DS authentication server (ACS) when the buyer has been correctly authenticated (vads_threeds_status equals « Y » or « A »).
In case of authentication without payment (e.g. card registration), Mastercard can return the following values:
Output field, returned in the response (IPN and Return URL). | ||||||||||||||||||||||
| Format | an..2 | ||||||||||||||||||||||
| Category | Authentication of cardholder. |