Decoupled notification
During the decoupled authentication process, 3DS Server will send a notification to the 3DS Requestor informing the authentication result. This notification is performed with an HTTP POST on the URL informed on the authentication service (decoupled_notification_url field), in the application/x-www-form-urlencoded format. The 3DS Requestor mut respond to this call with HTTP code 200.
Below are the parameters of this notification:
| Parameter | Description | Format |
|---|---|---|
three_ds_server_status | 3DS Server transaction status. Learn more. | = 3 AN |
three_ds_server_trans_id | 3DS Server transaction ID. | = 36 AN |
eci | Electronic Commerce Indicator. | = 2 N |
authentication_value | Payment System-specific value provided by the ACS or the DS using an algorithm defined by Payment System. Authentication Value may be used to provide proof of authentication (CAVV). | = 28 AN |