What does ISWS mean in ISO 20022?

ISWS is Invalid Settlement Window in the ExternalStatusReason1Code code set: Cannot schedule instruction for Night Window.

Where does ISWS appear in a message?

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

ExternalStatusReason1Code

ISWS Reason Code: Invalid Settlement Window

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

ISWS means invalid settlement window in the ISO 20022 status reason code set. Cannot schedule instruction for Night Window.

Code: ISWS
ISO name: InvalidSettlementWindow
Status: Registered
Last updated: 2024-05-31

Official definition

Cannot schedule instruction for Night Window.

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.

ISWS in other code sets

ISWS in ExternalRejectedReason1Code

ISWS questions

What does ISWS mean in ISO 20022?: ISWS is Invalid Settlement Window in the ExternalStatusReason1Code code set: Cannot schedule instruction for Night Window.
Where does ISWS 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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