What is the latest version of sese.042?

The latest version in the ISO 20022 e-Repository release of 24 April 2025 is sese.042.001.02.

What is the root element of sese.042?

The XML document is Document with the namespace urn:iso:std:iso:20022:tech:xsd:sese.042.001.02, and its message element is BuyInRgltryAdvcRspn (BuyInRegulatoryAdviceResponse).

Is there an MT equivalent of sese.042?

No Swift MT message is listed as its direct equivalent on this site. Many ISO 20022 messages have no MT counterpart.

sese: Securities Settlement

sese.042 Buy In Regulatory Advice Response

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

sese.042 is the ISO 20022 BuyInRegulatoryAdviceResponse message in the Securities Settlement business area (sese). The latest version is sese.042.001.02, and 2 versions are in the repository.

Message: BuyInRegulatoryAdviceResponse
Latest version: sese.042.001.02
Submitting organisation: Not read from the catalogue
MT equivalent: None listed

In use: published in the current ISO 20022 catalogue.

What sese.042 is for

An account servicer sends a BuyInRegulatoryAdviceResponse to an account owner to advise the status of a buy-in report previously instructed by the account owner.
The account servicer/owner relationship may be:
- a central securities depository or another settlement market infrastructure acting on behalf of their participants
- an agent (sub-custodian) acting on behalf of their global custodian customer, or
- a custodian acting on behalf of an investment management institution or a broker/dealer.
A BuyInRegulatpryReport may contain reports on multiple transactions. However, one BuyInRegulatoryReportStatusAdvice must be sent per transaction reported unless the BuyInRegulatoryReport is rejected as a whole.
The message may also be used to:
- re-send a message previously sent,
- provide a third party with a copy of a message for information,
- re-send to a third party a copy of a message for information using the relevant elements in the Business Application Header.

Definition from the ISO 20022 e-Repository, release of 24 April 2025.

sese.042 versions

Every version published in the e-Repository, newest first. A message keeps its business purpose across versions; each new version is a separate schema with its own namespace.

Version	Registration status	Published in
sese.042.001.02latest	Registered	Latest version set
sese.042.001.01	Registered	Archive

sese.042 message structure

The building blocks of sese.042.001.02 to three levels, with multiplicity ([0..1] optional, [1..1] mandatory, * any number) and the data type or component. Element names and definitions are from the ISO 20022 repository; usage guidelines such as CBPR+ or a market infrastructure's rules can restrict them further.

Document [1..1]
- BuyInRgltryAdvcRspn BuyInRegulatoryAdviceResponse [1..1]
  - AdvcRef Advice Reference [1..1]Identification14
    Identification of the BuyInRegulatoryAdvice message for which the response is provided.
    - Id Identification [1..1]Max35Text
      Unique identifier of a document, message or transaction.
  - AcctOwnr Account Owner [0..1]PartyIdentification144
    Party that legally owns the account.
    - Id Identification [1..1]PartyIdentification127Choice (choice)
      Unique identification of the party.
      - AnyBIC Any BIC [1..1]AnyBICDec2014Identifier
      - PrtryId Proprietary Identification [1..1]GenericIdentification36
    - LEI LEI [0..1]LEIIdentifier
      Legal entity identification as an alternate identification for a party.
  - SfkpgAcct Safekeeping Account [0..1]SecuritiesAccount19
    Account used in the original failing transaction.
    - Id Identification [1..1]Max35Text
      Unambiguous identification for the account between the account owner and the account servicer.
    - Tp Type [0..1]GenericIdentification30
      Specifies the type of securities account.
      - Id Identification [1..1]Exact4AlphaNumericText
      - Issr Issuer [1..1]Max35Text
      - SchmeNm Scheme Name [0..1]Max35Text
    - Nm Name [0..1]Max70Text
      Description of the account.
  - BuyInAttrbts Buy In Attributes [0..*]BuyInAdviceDetails2
    Details of the buy-in.
    - Ref Reference [1..1]References31
      References of the failing transaction.
      - AcctOwnrTxId Account Owner Transaction Identification [0..1]Max35Text
      - AcctSvcrTxId Account Servicer Transaction Identification [0..1]Max35Text
      - MktInfrstrctrTxId Market Infrastructure Transaction Identification [0..1]Max35Text
      - PrcrTxId Processor Transaction Identification [0..1]Max35Text
      - PoolId Pool Identification [0..1]Max35Text
      - CmonId Common Identification [0..1]Max35Text
      - TradId Trade Identification [0..1]Max35Text
      - UnqTxIdr Unique Transaction Identifier [0..1]UTIIdentifier
    - BuyInStat Buy In State [1..1]BuyInState1Code
      Status of the buy-in transaction.
    - BuyInDfrrl Buy In Deferral [1..1]BuyInDeferral1Code
      Specifies if the buy-in transaction was deferred or not.
    - FinInstrmId Financial Instrument Identification [0..1]SecurityIdentification19
      Identification of the financial instrument of the buy-in instruction.
      - ISIN ISIN [0..1]ISINOct2015Identifier
      - OthrId Other Identification [0..*]OtherIdentification1
      - Desc Description [0..1]Max140Text
    - Qty Quantity [0..1]FinancialInstrumentQuantity1Choice (choice)
      Quantity of financial instrument concerned by the buy-in transaction.
      - Unit Unit [1..1]DecimalNumber
      - FaceAmt Face Amount [1..1]ImpliedCurrencyAndAmount
      - AmtsdVal Amortised Value [1..1]ImpliedCurrencyAndAmount
    - BuyInPric Buy In Price [0..1]RateAndAmountFormat39Choice (choice)
      Price of the traded financial instrument in the buy-in transaction.
      - Rate Rate [1..1]PercentageRate
      - Amt Amount [1..1]ActiveCurrencyAnd13DecimalAmount
    - CshCompstnAmt Cash Compensation Amount [0..1]AmountAndDirection102
      Amount of money that has to be paid by the failing trading party in case of an unsuccessful or partially successful buy-in transaction.
      - Amt Amount [1..1]ActiveCurrencyAndAmount
      - Sgn Sign [1..1]PlusOrMinusIndicator
    - BuyInSttlmDt Buy In Settlement Date [0..1]DateAndDateTime2Choice (choice)
      Settlement date of the buy-in.
      - Dt Date [1..1]ISODate
      - DtTm Date Time [1..1]ISODateTime
  - PrcgSts Processing Status [1..1]ProcessingStatus79Choice (choice)
    Provides details on the processing status of the advice.
    - AckdAccptd Acknowledged Accepted [1..1]AcknowledgedAcceptedStatus33Choice (choice)
      Buy-in advice is acknowledged by the account servicer.
      - NoSpcfdRsn No Specified Reason [1..1]NoReasonCode
      - Rsn Reason [1..*]AcknowledgementReason21
    - Rjctd Rejected [1..1]RejectionOrRepairStatus31Choice (choice)
      Buy-in advice is rejected for further processing.
      - NoSpcfdRsn No Specified Reason [1..1]NoReasonCode
      - Rsn Reason [1..*]RejectionOrRepairReason25
  - SplmtryData Supplementary Data [0..*]SupplementaryData1
    Additional information that cannot be captured in the structured elements and/or any other specific block.
    - PlcAndNm Place And Name [0..1]Max350Text
      Unambiguous reference to the location where the supplementary data must be inserted in the message instance.
    - Envlp Envelope [1..1]SupplementaryDataEnvelope1
      Technical element wrapping the supplementary data.

Have a sese.042 message? Paste it into the parser to see every element with its name and definition, and format checks on BICs, IBANs, dates and amounts.

External code sets used in sese.042

These elements take their values from ISO 20022 external code sets, which are published separately and updated every quarter without a new message version.

ExternalFinancialInstrumentIdentificationType1Code24 codes

sese.042 questions

What is the latest version of sese.042?: The latest version in the ISO 20022 e-Repository release of 24 April 2025 is sese.042.001.02.
What is the root element of sese.042?: The XML document is Document with the namespace urn:iso:std:iso:20022:tech:xsd:sese.042.001.02, and its message element is BuyInRgltryAdvcRspn (BuyInRegulatoryAdviceResponse).
Is there an MT equivalent of sese.042?: No Swift MT message is listed as its direct equivalent on this site. Many ISO 20022 messages have no MT counterpart.

All ISO 20022 messages · ISO 20022 code sets · MT messages

The ISO 20022 message definitions, element 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.