ISO 20022 · External code set

Verification reason codes

Specifies the external verification reason code, as published in an external verification code set. External code sets can be downloaded from www.iso20022.org.

16 registered codesSource release: August 2026 (v3)
Registered codes in ExternalVerificationReason1Code. Select a code for its full definition and source details.
CodePublished name and definition
AC01Incorrect Account Number

Account number provided in the request is invalid or missing.

AG01Transaction Forbidden On This Account

Transaction forbidden on this type of account (Payment cannot be made to this account for example not open for deposits, blocked, closed).

AGNTIncorrect Agent

Agent identification provided in the request is incorrect

BNORAccount Holding Bank Not Registered

PSP is not registered under this Scheme.

DS28Return For Technical Reason

Return following technical problems resulting in erroneous transaction.

DUPLDuplicate Request

Request is a duplicate of another request

FF01Invalid File Format

File format incomplete or invalid.

MS03Not Specified Reason Agent Generated

Reason has not been specified by agent.

NORRNo Report Recieved

No response on request within timeframe.

NR01No Reason Possible

PSP not able to confirm details and no reason is stated.

PI01Account Owner Identification Do Not Match

Account Owner Identification and Payment Account number do not match.

PN01Account Owner Name Do Not Match

Account Owner name and Payment Account number do not match.

PN02Account Owner Name Close Match

Account Owner name and Payment Account number is a close match.

RC03Invalid Debtor Bank Identifier

Debtor bank identifier is invalid or missing.

RC04Invalid Creditor Bank Identifier

Creditor bank identifier is invalid or missing.

TM01Invalid Cut Off Time

Associated message was received after agreed processing cut-off time.

Message references 4

Versions listed in the source workbook, including older versions. This list does not establish which messages a bank, network or provider supports.

  • acmt.024.001.02Identification Verification Report V02
  • acmt.024.001.01Identification Verification Report V01
  • acmt.024.001.03Identification Verification Report V03
  • acmt.024.001.04Identification Verification Report V04

Source: UsageInMsgs sheet in 2Q2026_externalcodesets_v3.xlsx.