Authentication result codes

This article contains a summary list of authentication result codes and their classifications for each instrument as standardised by BankTech across acquiring banks. At the bottom, there is also a file of all result codes if you want to have a predefined and exhaustive matching on result code level. However, in general, working off the result type should be sufficient for most users interested in a simple result.

There are typically three authentication result code timings depending on how far a transaction got in processing and whether any status updates occurred. Results are reported at the time of acquiring bank submission validation, processing execution and post-processing. Any validation errors will be reported at submission and you can resolve and resubmit these transactions in most cases.

For some authentication instruments, there are special rules to consider. For example, TT2 NAEDO Migration can only be performed on mandates which have collected on NAEDO before and can only be submitted for authentication during the migration window. Additionally, RMS can only be requested where a TT2 attempt has been made but the debtor did not respond to the authentication request.

While every effort is made to keep these lists updated, BankTech is unable to guarantee the full list of result codes is always accurate as the industry regularly reviews these result codes.

TT1

ResultCode	ResultDescription	ResultType	Timing
RTA2000	Pending authorisation	Pending	Validation
RTA200	Debtor accepted authentication	Successful	Execution
RTA500	Rejected by the debtor	Rejected	Execution
RTA100	No response from the debtor	Time-Out	Post

TT2

ResultCode	ResultDescription	ResultType	Timing
PRE2000	Pending authorisation	Pending	Validation
PRE200	Debtor accepted authentication	Successful	Execution
PRE500	Rejected by the debtor	Rejected	Execution
PRE100	No response from the debtor	Time-Out	Post

TT2 NAEDO Migration

ResultCode	ResultDescription	ResultType	Timing
NMI2000	Pending authorisation	Pending	Validation
NMI200	Debtor accepted authentication	Successful	Execution
NMI500	Rejected by the debtor	Rejected	Execution
NMI100	No response from the debtor	Time-Out	Post

RMS

ResultCode	ResultDescription	ResultType	Timing
RMS2000	Pending authorisation	Pending	Validation
RMS200	Debtor accepted authentication	Successful	Execution
RMS500	Rejected by the debtor	Rejected	Execution
RMS100	No response from the debtor	Time-Out	Post

Full List