What does MS03 mean in ISO 20022?

MS03 is Not Specified Reason Agent Generated in the ExternalVerificationReason1Code code set: Reason has not been specified by agent.

Where does MS03 appear in a message?

For example in acmt.024, element Rpt/Rsn/Cd.

ExternalVerificationReason1Code

MS03 Reason Code: Not Specified Reason Agent Generated

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

MS03 means not specified reason agent generated in the ISO 20022 verification reason code set. Reason has not been specified by agent.

Code: MS03
ISO name: NotSpecifiedReasonAgentGenerated
Status: Registered
Last updated: 2023-11-30

Official definition

Reason has not been specified by agent.

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

Messages and fields that use ExternalVerificationReason1Code

Message	Element path
acmt.024	Rpt/Rsn/Cd

MS03 in other code sets

MS03 questions

What does MS03 mean in ISO 20022?: MS03 is Not Specified Reason Agent Generated in the ExternalVerificationReason1Code code set: Reason has not been specified by agent.
Where does MS03 appear in a message?: For example in acmt.024, element Rpt/Rsn/Cd.

All ExternalVerificationReason1Code 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.