What does TECH mean in ISO 20022?

TECH is Technical Problem in the ExternalCancellationReason1Code code set: Cancellation requested following technical problems resulting in an erroneous transaction.

What should I do when I get TECH?

Identify every affected payment, cancel each with its UETR, and fix the cause before releasing more payments.

Where does TECH appear in a message?

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

ExternalCancellationReason1Code

TECH Reason Code: Technical Problem

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

TECH means technical problem in the ISO 20022 cancellation reason code set. The payment should be cancelled because a technical problem produced it, for example a system sending the same file twice.

Code: TECH
ISO name: TechnicalProblem
Status: Registered
Last updated: 2017-02-08

Official definition

Cancellation requested following technical problems resulting in an erroneous transaction.

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 should be cancelled because a technical problem produced it, for example a system sending the same file twice.

What to do

Identify every affected payment, cancel each with its UETR, and fix the cause before releasing more payments.

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

TECH questions

What does TECH mean in ISO 20022?: TECH is Technical Problem in the ExternalCancellationReason1Code code set: Cancellation requested following technical problems resulting in an erroneous transaction.
What should I do when I get TECH?: Identify every affected payment, cancel each with its UETR, and fix the cause before releasing more payments.
Where does TECH 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.