What does SYST mean in ISO 20022?

SYST is System Access Request in the ExternalNotificationType1Code code set: Request for access to a system.

Where does SYST appear in a message?

For example in admi.024, element NtfctnData/NtfctnTp/Cd.

ExternalNotificationType1Code

SYST Code: System Access Request

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

SYST means system access request in the ISO 20022 notification type code set. Request for access to a system.

Code: SYST
ISO name: SystemAccessRequest
Status: Registered
Last updated: 2024-12-03

Official definition

Request for access to a system.

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

Messages and fields that use ExternalNotificationType1Code

Message	Element path
admi.024	NtfctnData/NtfctnTp/Cd

SYST in other code sets

SYST in ExternalCollateralReferenceDataStatusReason1Code

SYST questions

What does SYST mean in ISO 20022?: SYST is System Access Request in the ExternalNotificationType1Code code set: Request for access to a system.
Where does SYST appear in a message?: For example in admi.024, element NtfctnData/NtfctnTp/Cd.

All ExternalNotificationType1Code 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.