Parameter 

Node Type 

Data Type 

Min Length 

Max Length 

Description 

UPOP_TransactionTime 

tag 

String  

The time when the Merchant sends the transaction. 

Date and time formatted as an ISO 8601 combined date and time string using the extended format. 

            - Format: YYYY-MM-DDThh:mm:ssZ 

              - YYYY = year 

              - MM = month 

              - DD = day 

              - hh = hour 

              - mm = minutes 

              - ss = seconds 

UPOP_RelatedTransactionType 

tag 

String 

2 

2 

Related Transaction Type. One of: 

              - Purchase 

              - Pre-authorization 

              The corresponding UnionPay protocol values are: 

              - 01: Purchase 

              - 02: Pre-authorization 

UPOP_RequestID 

Tag 

Guid 

38 

The RequestID that was returned as part of the Request Creation that will be used to retrieve data for the Authentication Validation 

UPOP_FrontUrl 

Tag 

URL 

256 

UPOP send the transaction result notification to the URL via cardholder’s browser 

UPOP_BackUrl 

Tag 

URL 

256 

UPOP send the transaction result notification to the URL via system 

UPOP_ACPReq 

Tag 

Base64 

No Limit 

The Authentication Request message to be posted to the UPOP authentication server 

UPOP_Endpoint 

Tag 

URL 

The UPOP authentication server endpoint where the Authentication Request message must be posted via cardholder’s browser 

UPOP_ACPRes 

Tag 

Base64 

No Limit 

The Authentication Response message received from the UPOP authentication server