What does AC03 mean in ISO 20022?

AC03 is Invalid Creditor Account Number in the ExternalReversalReason1Code code set: Wrong IBAN in SCT

Where does AC03 appear in a message?

For example in pacs.007, element TxInf/RvslRsnInf/Rsn/Cd.

ExternalReversalReason1Code

AC03 Reason Code: Invalid Creditor Account Number

Written and maintained by ZagTrader. Last reviewed 21 October 2026. How this page is sourced and checked

AC03 means invalid creditor account number in the ISO 20022 reversal reason code set. Wrong IBAN in SCT

Code: AC03
ISO name: InvalidCreditorAccountNumber
Status: Registered
Last updated: 2012-10-08

Official definition

Wrong IBAN in SCT

Definition from the ISO 20022 External Code Sets, 2Q2026 (published 28 Aug 2026).

Messages and fields that use ExternalReversalReason1Code

Message	Element path
pacs.007	TxInf/RvslRsnInf/Rsn/Cd, OrgnlGrpInf/RvslRsnInf/Rsn/Cd
pain.007	OrgnlGrpInf/RvslRsnInf/Rsn/Cd, OrgnlPmtInfAndRvsl/RvslRsnInf/Rsn/Cd, OrgnlPmtInfAndRvsl/TxInf/RvslRsnInf/Rsn/Cd

AC03 in other code sets

AC03 questions

What does AC03 mean in ISO 20022?: AC03 is Invalid Creditor Account Number in the ExternalReversalReason1Code code set: Wrong IBAN in SCT
Where does AC03 appear in a message?: For example in pacs.007, element TxInf/RvslRsnInf/Rsn/Cd.

All ExternalReversalReason1Code codes · ISO 20022 code sets

The ISO 20022 code names and definitions on this page are reproduced from material published at iso20022.org under the ISO 20022 Intellectual Property Rights policy. This is not the official source: the up-to-date ISO 20022 standards and repository material are published only at iso20022.org. Explanations in our own words are by ZagTrader. ZagTrader is not affiliated with or endorsed by ISO or Swift.