What does DUPL mean in ISO 20022?

DUPL is Duplicate Payment in the ExternalCancellationReason1Code code set: Payment is a duplicate of another payment.

What should I do when I get DUPL?

Make sure only one payment remains. Use the UETR of the duplicate when you ask for cancellation, so the receiver can find it.

Where does DUPL appear in a message?

For example in camt.056, element Undrlyg/TxInf/CxlRsnInf/Rsn/Cd.

ExternalCancellationReason1Code

DUPL Reason Code: Duplicate Payment

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

DUPL means duplicate payment in the ISO 20022 cancellation reason code set. The payment is a duplicate of another payment.

Code: DUPL
ISO name: DuplicatePayment
Status: Registered
Last updated: 2017-02-08

Official definition

Payment is a duplicate of another payment.

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

What it means in practice

In a camt.056 cancellation request (or camt.055 from a customer), a cancellation reason code explains why the sender asks for a payment to be stopped or its funds returned. It sits in Undrlyg/TxInf/CxlRsnInf/Rsn/Cd.

The payment is a duplicate of another payment. As a cancellation reason it asks the receiver to stop or send back the second copy.

What to do

Make sure only one payment remains. Use the UETR of the duplicate when you ask for cancellation, so the receiver can find it.

Messages and fields that use ExternalCancellationReason1Code

Message	Element path
camt.056	Undrlyg/TxInf/CxlRsnInf/Rsn/Cd, Undrlyg/OrgnlGrpInfAndCxl/CxlRsnInf/Rsn/Cd
camt.008	CxlRsn/Rsn/Cd
camt.037	Dtl/CxlRsn/Cd
camt.055	Undrlyg/OrgnlGrpInfAndCxl/CxlRsnInf/Rsn/Cd, Undrlyg/OrgnlPmtInfAndCxl/CxlRsnInf/Rsn/Cd, Undrlyg/OrgnlPmtInfAndCxl/TxInf/CxlRsnInf/Rsn/Cd
camt.110	InvstgtnData/AddtlReqData/ReqdDbtAuthstn/CxlRsn/Cd
camt.116	versions 001.01

DUPL in other code sets

DUPL questions

What does DUPL mean in ISO 20022?: DUPL is Duplicate Payment in the ExternalCancellationReason1Code code set: Payment is a duplicate of another payment.
What should I do when I get DUPL?: Make sure only one payment remains. Use the UETR of the duplicate when you ask for cancellation, so the receiver can find it.
Where does DUPL appear in a message?: For example in camt.056, element Undrlyg/TxInf/CxlRsnInf/Rsn/Cd.

All ExternalCancellationReason1Code 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.