10.5 Discover Response Codes

10.5.1 General Error Codes—All Transactions

1110, 1120, & 1210 – Transaction is Declined

Thredd Response Code	Maps to Discover Response Code	Description
tbd	904	Format Error
tbd	905	Acquirer Not Supported By Xpress
tbd	909	System Malfunction
tbd	916	MAC Key Invalid
tbd	923	Request In Progress

10.5.2 Transaction is Approved (1110, 1120 & 1200)

Thredd Response Code	Discover Response Code	Description
tbd	000	PIN Change Successful (EMV only)
tbd	001	Honor With Identification
tbd	081	Approved by Issuer (See Item 2 in the Diners Club Application Notes above.)
tbd	082	Approved by Xpress (Network Stand in)
tbd	083	Final Amount Advice (following Pre-Auth Approval (a)
tbd	084	Off-line Approved (EMV only)
tbd	085	Off-line Approved—Unable To Go Online (EMV only)
tbd	086	Card Account Verification Successful

a. Effective on 16 April 2021, Acquirer Participants, Service Establishments, and their respective Processors may not use Downtime Authorization Procedures, Stand-In Authorization or Negative File(s), to obtain Authorization decisions for Card Transactions, notwithstanding any terms in the applicable Network Participation Agreement. You must obtain a positive Authorization response for each Card Transaction. If an Authorization Response for a Card Transaction is obtained using Downtime Authorization Procedures, Stand-in Authorization or a Negative File, such Card Transaction may be subject to Noncompliance Fees and Dispute.