← ISO 20022 Reason Codes
ISO 20022 reason code · pacs.002 · pacs.004

AC01Incorrect account number

What does reason code AC01 mean?

Incorrect account number. Account number is invalid or missing.

Code
AC01
Group
Account
Used in
pacs.002 (reject or status report), pacs.004 (return of funds)

What to do when you receive AC01

  • Check the IBAN length and MOD-97 check digits before sending; most AC01s are typos.
  • Do not retry unchanged: ask the customer for the correct account number.

In SEPA

One of the most common SCT rejects and returns. Validating the IBAN at capture removes most of them.

Definition by message

MessageISO 20022 definition
pacs.002Account number is invalid or missing.TxInfAndSts/StsRsnInf/Rsn/Cd
pacs.004Format of the account number specified is not correctTxInf/RtrRsnInf/Rsn/Cd

Decode any value

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Open the ISO 20022 Reason Codes

Related codes

AC03Invalid creditor account numberAC04Closed account numberRC01Bank identifier incorrectBE01Inconsistent with end customer

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