What does AM10 mean in ISO 20022?

AM10 is Invalid Control Sum in the ExternalStatusReason1Code code set: Sum of instructed amounts does not equal the control sum.

Where does AM10 appear in a message?

For example in pacs.002, element TxInfAndSts/StsRsnInf/Rsn/Cd.

ExternalStatusReason1Code

AM10 Reason Code: Invalid Control Sum

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

AM10 means invalid control sum in the ISO 20022 status reason code set. Sum of instructed amounts does not equal the control sum.

Code: AM10
ISO name: InvalidControlSum
Status: Registered
Last updated: 2009-04-01

Official definition

Sum of instructed amounts does not equal the control sum.

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

Messages and fields that use ExternalStatusReason1Code

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

And 8 more messages: see the ExternalStatusReason1Code page.

AM10 in other code sets

AM10 in ExternalReturnReason1Code

AM10 questions

What does AM10 mean in ISO 20022?: AM10 is Invalid Control Sum in the ExternalStatusReason1Code code set: Sum of instructed amounts does not equal the control sum.
Where does AM10 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

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