HTTP/1.1 422 Unprocessable Entity
Content-Type: application/xml; charset=utf-8

<?xml version="1.0" encoding="UTF-8"?>
<errors>
  <transaction_error>
    <error_code>invalid_card_number</error_code>
    <error_category>declined</error_category>
    <customer_message lang="en-US">Your card number is not valid. Please update your card number.</customer_message>
    <merchant_message lang="en-US">The credit card number is not valid. The customer needs to try a different number.</merchant_message>
  </transaction_error>
  <error field="transaction.account.billing_info.credit_card_number" symbol="invalid" lang="en-US">is not valid</error>
  <transaction href="https://api.recurly.com/v2/transactions/abcdef1234567890">
    <uuid>abcdef1234567890</uuid>
    <action>purchase</action>
    <amount_in_cents type="integer">100</amount_in_cents>
    <tax_in_cents type="integer">0</tax_in_cents>
    <currency>USD</currency>
    <status>declined</status>
    <reference nil="nil"></reference>
    <test type="boolean">true</test>
    <voidable type="boolean">false</voidable>
    <refundable type="boolean">false</refundable>
    <transaction_error>
      <error_code>invalid_card_number</error_code>
      <error_category>hard</error_category>
      <merchant_message>The credit card number is not valid. The customer needs to try a different number.</merchant_message>
      <customer_message>Your card number is not valid. Please update your card number.</customer_message>
    </transaction_error>
    <cvv_result code=""></cvv_result>
    <avs_result code=""></avs_result>
    <avs_result_street nil="nil"></avs_result_street>
    <avs_result_postal nil="nil"></avs_result_postal>
    <created_at type="datetime">2011-04-30T12:00:00Z</created_at>
    <details>
      <account>
        <account_code>verena</account_code>
        <first_name nil="nil"></first_name>
        <last_name nil="nil"></last_name>
        <company nil="nil"></company>
        <email nil="nil"></email>
        <billing_info type="credit_card">
          <first_name nil="nil"></first_name>
          <last_name nil="nil"></last_name>
          <address1 nil="nil"></address1>
          <address2 nil="nil"></address2>
          <city nil="nil"></city>
          <state nil="nil"></state>
          <zip nil="nil"></zip>
          <country nil="nil"></country>
          <phone nil="nil"></phone>
          <vat_number nil="nil"></vat_number>
          <cc_type>visa</cc_type>
          <year type="integer">2011</year>
          <month type="integer">4</month>
          <first_six>411111</first_six>
          <last_four>1111</last_four>
        </billing_info>
      </account>
    </details>
  </transaction>
</errors>