What does BE05 mean in ISO 20022?

BE05 is Unrecognised Initiating Party in the ExternalMandateReason1Code code set: Party who initiated the message is not recognised by the end customer

Where does BE05 appear in a message?

For example in pain.010, element UndrlygAmdmntDtls/AmdmntRsn/Rsn/Cd.

ExternalMandateReason1Code

BE05 Reason Code: Unrecognised Initiating Party

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

BE05 means unrecognised initiating party in the ISO 20022 mandate reason code set. Party who initiated the message is not recognised by the end customer

Code: BE05
ISO name: UnrecognisedInitiatingParty
Status: Registered
Last updated: 2010-11-01

Official definition

Party who initiated the message is not recognised by the end customer

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

Messages and fields that use ExternalMandateReason1Code

Message	Element path
pain.010	UndrlygAmdmntDtls/AmdmntRsn/Rsn/Cd
pain.011	UndrlygCxlDtls/CxlRsn/Rsn/Cd
pain.012	UndrlygAccptncDtls/AccptncRslt/RjctRsn/Cd

BE05 in other code sets

BE05 questions

What does BE05 mean in ISO 20022?: BE05 is Unrecognised Initiating Party in the ExternalMandateReason1Code code set: Party who initiated the message is not recognised by the end customer
Where does BE05 appear in a message?: For example in pain.010, element UndrlygAmdmntDtls/AmdmntRsn/Rsn/Cd.

All ExternalMandateReason1Code 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.