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Enable 3DS2 for Stripe gateway integration

Zuora

Enable 3DS2 for Stripe gateway integration

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3D Secure 2.0 (3DS2) is a widely recommended solution for strong customer authentication (SCA) under PSD2. The Stripe v2 gateway integration provides support for 3DS2 through the embedded iFrame of Payment Pages 2.0. 

To comply with PSD2 using 3DS2, the following updates are required:

  1. Enable 3DS2 for your Stripe merchant account.
  2. Configure the gateway instance.
  3. Configure 3DS2 settings in Payment Pages.

Then you can implement and use Payment Pages 2.0 as usual. See Payment Pages 2.0 implementation overview for more information.

With 3DS2 implemented and enabled, when end customers are challenged while transacting on your Payment Page, they will get held up on the challenge window before passing the validation. The callback page is displayed only when they are authenticated. A payment method ID is also generated and returned. 

If your customers failed the strong customer authentication, the [ThreeDs2_Authentication_Exception] error code and the actual error message are returned. The error code is common across all gateways, while the error message is gateway-specific.

Enable 3DS2 for merchant account 

Before configuring your Zuora tenant, you must enable settings related to 3DS2 for your Stripe merchant account. Contact Stripe Support and provide the following information to enable the required settings:

  • Your Stripe account ID
  • A statement that you are using the Zuora v2 adapter
  • A request for enabling a feature to recognize the mit_exemption parameter to avoid the following error when processing payments:
    400 [invalid_request_error/parameter_unknown] Received unknown parameter: payment_method_options[card][mit_exemption]

Configure the gateway instance

Only the Stripe v2 version supports 3DS2. If you are using an earlier version of Stripe gateway integration, upgrade your gateway to this version. Contact Zuora Global Support to get access to Stripe v2.

Follow Configure the Stripe payment gateway to learn how to configure Stripe v2 gateway instances.

Configure 3DS2 settings in Payment Pages

When setting up a Payment Page, select the Enable 3D Secure 2.0 checkbox and select the created gateway instance from the Default Payment Gateway dropdown list. You can complete other settings as usual.

Zuora recommends you to enable the CAPTCHA challenge feature so that you can limit the number of times end customers can attempt to submit the form after they fail the authentication. CAPTCHA challenge can be used with the 3DS2 feature to prevent potential bot attacks and reinforce the transaction security.

For more information about enabling and configuring CAPTCHA, see Security Measures for Payment Pages 2.0.

If you select a gateway integration that does not support 3DS2, an error message is displayed when saving the Payment Page.

The "Best practices" section in Zuora’s implementation of 3D Secure 2.0 provides best practices for reducing the possibility of failed transactions due to 3DS2 authentication errors.

Credit Card Reference Transactions

If you are using the Credit Card Reference Transactions (Tokenization) payment methods through the existing Stripe v1 gateway, you must upgrade to Stripe v2. Contact Zuora Global Support to get access to Stripe v2.

Direct POST

After completing the authentication and authorization outside Zuora, you need to pass through the credit card data along with several required fields for merchant initiated transactions (MITs) to Zuora through Direct POST. See Direct POST Form Fields for Payment Pages 2.0 for a full list of fields for 3DS2.

Specific to the Stripe gateway:

  • The field_mitNetworkTransactionId field corresponds to network_transaction_id you get from Stripe.
  • The field_mitGatewayToken1 corresponds to ds_transaction_id you get from Stripe. If ds_transaction_id is null, you can skip including this field.