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ExternalStatusReason1Code

UPAY Reason Code: Undue Payment

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UPAY means undue payment in the ISO 20022 status reason code set. The payment is not justified: it was not due, was sent to the wrong party, or was paid in error.

Code
UPAY
ISO name
UnduePayment
Status
Registered
Last updated
2021-08-31

Official definition

Payment is not justified.

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

What it means in practice

In a pacs.002 or pain.002 status report, a status reason code explains why a payment instruction was rejected (RJCT) or why it has another status. It sits in TxInfAndSts/StsRsnInf/Rsn/Cd.

The payment is not justified: it was not due, was sent to the wrong party, or was paid in error.

What to do

  • Request the return of the funds and record the reason; the receiving bank usually needs the beneficiary's consent once funds are credited.

Messages and fields that use ExternalStatusReason1Code

MessageElement path
pacs.002TxInfAndSts/StsRsnInf/Rsn/Cd, OrgnlGrpInfAndSts/StsRsnInf/Rsn/Cd
pain.002OrgnlGrpInfAndSts/StsRsnInf/Rsn/Cd, OrgnlPmtInfAndSts/StsRsnInf/Rsn/Cd, OrgnlPmtInfAndSts/TxInfAndSts/StsRsnInf/Rsn/Cd
auth.027GrpSts/StsRsn/Rsn/Cd, PackgSts/StsRsn/Rsn/Cd, PackgSts/RcrdSts/StsRsn/Rsn/Cd
camt.025RctDtls/ReqHdlg/StsRsn/Rsn/Cd
camt.111InvstgtnRspn/InvstgtnData/RspnData/TxSts/StsRsnInf/Rsn/Cd
pain.014OrgnlGrpInfAndSts/StsRsnInf/Rsn/Cd, OrgnlPmtInfAndSts/StsRsnInf/Rsn/Cd, OrgnlPmtInfAndSts/TxInfAndSts/StsRsnInf/Rsn/Cd
reda.016PtySts/StsRsn/Rsn/Cd
reda.020SctiesAcctSts/StsRsn/Rsn/Cd
reda.047SctyCSDLkSts/StsRsn/Rsn/Cd
reda.051AcctLkSts/StsRsn/Rsn/Cd

And 8 more messages: see the ExternalStatusReason1Code page.

UPAY in other code sets

UPAY questions

What does UPAY mean in ISO 20022?
UPAY is Undue Payment in the ExternalStatusReason1Code code set: Payment is not justified.
What should I do when I get UPAY?
Request the return of the funds and record the reason; the receiving bank usually needs the beneficiary's consent once funds are credited.
Where does UPAY appear in a message?
For example in pacs.002, element TxInfAndSts/StsRsnInf/Rsn/Cd.

All ExternalStatusReason1Code codes · ISO 20022 code sets · pacs.002 reject reasons explained

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.