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ExternalInvestigationReasonSubType1Code

MMNA Reason Code: Mismatch Name And Account

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MMNA means mismatch name and account in the ISO 20022 investigation reason sub type code set. Name and account are not matching.

Code
MMNA
ISO name
MismatchNameAndAccount
Status
Registered
Last updated
2024-02-28

Official definition

Name and account are not matching.

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

Messages and fields that use ExternalInvestigationReasonSubType1Code

MessageElement path
camt.110InvstgtnData/RsnSubTp/Cd
camt.111InvstgtnRspn/InvstgtnData/OrgnlInvstgtnRsnSubTp/Cd

MMNA questions

What does MMNA mean in ISO 20022?
MMNA is Mismatch Name And Account in the ExternalInvestigationReasonSubType1Code code set: Name and account are not matching.
Where does MMNA appear in a message?
For example in camt.110, element InvstgtnData/RsnSubTp/Cd.

All ExternalInvestigationReasonSubType1Code 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.