What does AC06 mean in ISO 20022?

AC06 is Blocked Account in the ExternalMandateReason1Code code set: Account specified is blocked, prohibiting posting of transactions against it.

Where does AC06 appear in a message?

For example in pain.010, element UndrlygAmdmntDtls/AmdmntRsn/Rsn/Cd.

ExternalMandateReason1Code

AC06 Reason Code: Blocked Account

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

AC06 means blocked account in the ISO 20022 mandate reason code set. Account specified is blocked, prohibiting posting of transactions against it.

Code: AC06
ISO name: BlockedAccount
Status: Registered
Last updated: 2010-11-01

Official definition

Account specified is blocked, prohibiting posting of transactions against it.

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

Messages and fields that use ExternalMandateReason1Code

Message	Element path
pain.010	UndrlygAmdmntDtls/AmdmntRsn/Rsn/Cd
pain.011	UndrlygCxlDtls/CxlRsn/Rsn/Cd
pain.012	UndrlygAccptncDtls/AccptncRslt/RjctRsn/Cd

AC06 in other code sets

AC06 questions

What does AC06 mean in ISO 20022?: AC06 is Blocked Account in the ExternalMandateReason1Code code set: Account specified is blocked, prohibiting posting of transactions against it.
Where does AC06 appear in a message?: For example in pain.010, element UndrlygAmdmntDtls/AmdmntRsn/Rsn/Cd.

All ExternalMandateReason1Code 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.