PARes Element

The
PARes
 element contains the payer authentication response.
<PARes>
  (AcqBIN)
  (MerID)
  (XID)
  (Date)
  (PurchaseAmount)
  (PAN)
  (AuthDate)
  (Status)
  (CAVV)
  (ECI)
</PARes>
Child Elements of PARes
Element Name
Description
Type & Length
AcqBIN
First six digits of the acquiring bank’s identification number.
Numeric (6)
MerID
Identifier provided by your acquirer; used to log in to the ACS URL.
String (24)
XID
XID value returned in the customer authentication response. This element corresponds to the
consumerAuthenticationInformation.xid
payerAuthEnrollReply_xid
 and
payerAuthValidateReply_xid
 API fields.
String (28)
Date
Date and time of request.
Differing time zones and the lack of synchronization between servers might prevent the date and time from appearing sequentially during all stages of processing.
DateTime (25)
PurchaseAmount
Authorization amount and currency for the transaction. This element corresponds to the totals of the offer lines or from the
ccAuthReply_amount
 or
purchaseTotals_grandTotalAmount
 field.
Amount (15)
PAN
Customer’s masked account number. This element corresponds to the
payerAuthEnrollReply_proxyPAN
 API field.
String (19)
AuthDate
Date and time of request.
(Although the date and time should appear sequentially during all stages of the processing of an order, they may not because of differing time zones and synchronization between servers.)
DateTime (25)
Status
Result of the authentication check. This field contains one of these values:
  • Y
    : Customer was successfully authenticated.
  • N
    : Customer failed or cancelled authentication. Transaction denied.
  • U
    : Authenticate not completed regardless of the reason.
  • A
    : Proof of authentication attempt was generated.
String (1)
CAVV
CAVV (Visa, American Express, JCB, Diners Club, Discover, China UnionPay, and Elo cards) element corresponds to the
payerAuthValidateReply_cavv
 field returned in the customer authentication response. The AAV (Mastercard, and Maestro cards) element corresponds to the
payerAuthValidateReply_ucafAuthenticationData
 API field eturned in the customer authentication response.
String (50)
ECI
Electronic Commerce Indicator returned in the customer authentication response. This element corresponds to the
payerAuthValidateReply_eci
 and
payerAuthValidateReply_ucafCollectionIndicator
API fields.
Numeric (1)
PARes Element
<PARes>
  <AcqBIN>123456</AcqBIN>
  <MerID>4444444</MerID>
  <XID>Xe5DcjrqEdyC37MOPfIzMwAHBwE=</XID>
  <Date>2020-02-09T07:59:46-08:00</Date>
  <PurchaseAmount>1002.00 USD</PurchaseAmount>
  <PAN>0000000000000771</PAN>
  <AuthDate>2020-02-09T07:59:46-08:00</AuthDate>
  <Status>Y</Status>
  <CAVV>AAAAAAAAAAAAAAAAAAAAAAAAAAA=</CAVV>
  <ECI>5</ECI>
</PARes>