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)Source details

Code setExternalVerificationReason1Code

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All 16 codes

Registered codes in `ExternalVerificationReason1Code`. Select a code for its full definition and source details.
Code	Published name and definition
`AC01`	Incorrect Account Number Account number provided in the request is invalid or missing.
`AG01`	Transaction 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).
`AGNT`	Incorrect Agent Agent identification provided in the request is incorrect
`BNOR`	Account Holding Bank Not Registered PSP is not registered under this Scheme.
`DS28`	Return For Technical Reason Return following technical problems resulting in erroneous transaction.
`DUPL`	Duplicate Request Request is a duplicate of another request
`FF01`	Invalid File Format File format incomplete or invalid.
`MS03`	Not Specified Reason Agent Generated Reason has not been specified by agent.
`NORR`	No Report Recieved No response on request within timeframe.
`NR01`	No Reason Possible PSP not able to confirm details and no reason is stated.
`PI01`	Account Owner Identification Do Not Match Account Owner Identification and Payment Account number do not match.
`PN01`	Account Owner Name Do Not Match Account Owner name and Payment Account number do not match.
`PN02`	Account Owner Name Close Match Account Owner name and Payment Account number is a close match.
`RC03`	Invalid Debtor Bank Identifier Debtor bank identifier is invalid or missing.
`RC04`	Invalid Creditor Bank Identifier Creditor bank identifier is invalid or missing.
`TM01`	Invalid 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.