{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "#/components/schemas/AuthenticationData",
  "title": "AuthenticationData",
  "properties": {
    "attemptAuthentication": {
      "x-addedInVersion": "69",
      "description": "Indicates when 3D Secure authentication should be attempted. This overrides all other rules, including [Dynamic 3D Secure settings](https://docs.adyen.com/risk-management/dynamic-3d-secure).\n\nPossible values:\n\n* **always**: Perform 3D Secure authentication.\n* **never**: Don't perform 3D Secure authentication. If PSD2 SCA or other national regulations require authentication, the transaction gets declined.",
      "enum": [
        "always",
        "never"
      ],
      "type": "string"
    },
    "authenticationOnly": {
      "x-addedInVersion": "69",
      "default": false,
      "description": "If set to true, you will only perform the [3D Secure 2 authentication](https://docs.adyen.com/online-payments/3d-secure/other-3ds-flows/authentication-only), and not the payment authorisation.\nDefault: **false**.",
      "type": "boolean"
    },
    "threeDSRequestData": {
      "x-addedInVersion": "69",
      "description": "Object with additional parameters for the 3D Secure authentication flow.",
      "$ref": "#/components/schemas/ThreeDSRequestData"
    }
  },
  "type": "object"
}