ZagTrader

ExternalPaymentModificationRejection1Code

UM03 Code: Unable To Modify Category Purpose

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

UM03 means unable to modify category purpose in the ISO 20022 payment modification rejection code set. Category purpose element of payment type cannot be modified (former UnableToModifyInstructionCode).

Code
UM03
ISO name
UnableToModifyCategoryPurpose
Status
Registered
Last updated
2018-05-01

Official definition

Category purpose element of payment type cannot be modified (former UnableToModifyInstructionCode).

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

Messages and fields that use ExternalPaymentModificationRejection1Code

MessageElement path
camt.029Sts/RjctdMod/Cd, ModDtls/ModStsRsnInf/Rsn/Cd

UM03 questions

What does UM03 mean in ISO 20022?
UM03 is Unable To Modify Category Purpose in the ExternalPaymentModificationRejection1Code code set: Category purpose element of payment type cannot be modified (former UnableToModifyInstructionCode).
Where does UM03 appear in a message?
For example in camt.029, element Sts/RjctdMod/Cd.

All ExternalPaymentModificationRejection1Code 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.