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version

1.0
2.0

3-D Secure Protocol version

1,2

threeDSServerTransID

String

3DS Server transaction ID

1,2

threeDSMethodURL

String (255 chars)

The ACS URL that will be used by the 3DS Method

1

threeDSMethodData

String (255 chars)

Request body (Base64 encoded)

1

alphaauthresult

Y - success, N - fai, A - Attempt, U – unable to authenticate, R- rejected

Authentication result will be received in case of Frictionless Flow authentication.

1,2

challenge

F - Frictionless Flow

C – Challenge Flow

Interaction with the customer (C – required, F – not needed)

1,2

challengeurl²

Full URL like

https://acs....

2048 symbols maximum

The ACS URL for payer verification

1,2

challengerequest²

String

Request body (Base64 encoded) for challengeurl request

1,2