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For version 3D-Secure 2.0 (unit 3), if the interaction with the card holder is necessary (unit 4) and the issuing bank URL threeDSMethodURL is present (unit 5), the enterprise generates hidden HTML iFrame on the payment page (unit 8) and sends a POST request with one parameter threeDSMethodData to the received address threeDSMethodURL.
For version 3D-Secure 2.0 (unit 3) without the interaction with the card holder (unit 4), Assist immediately executes a transaction in processing or completes the operation with an error (depending on processing and enterprise settings, and authentication result) (unit 12).
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Token payment
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