What is the latest version of caam.004?

The latest version in the ISO 20022 e-Repository release of 24 April 2025 is caam.004.001.04.

What is the root element of caam.004?

The XML document is Document with the namespace urn:iso:std:iso:20022:tech:xsd:caam.004.001.04, and its message element is ATMKeyDwnldRspn (ATMKeyDownloadResponse).

Is there an MT equivalent of caam.004?

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

caam: ATM Management

caam.004 ATM Key Download Response

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

caam.004 is the ISO 20022 ATMKeyDownloadResponse message in the ATM Management business area (caam). The latest version is caam.004.001.04, and 4 versions are in the repository.

Message: ATMKeyDownloadResponse
Latest version: caam.004.001.04
Submitting organisation: nexo
MT equivalent: None listed

In use: published in the current ISO 20022 catalogue.

What caam.004 is for

The ATMKeyDownloadResponse message is sent from an acquirer to an ATM in response to an ATMKeyDownloadRequest message, to download of one or several cryptographic keys.

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

caam.004 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
caam.004.001.04latest	Registered	Latest version set
caam.004.001.03	Registered	Previous version set
caam.004.001.02	Registered	Archive
caam.004.001.01	Registered	Archive

caam.004 message structure

The building blocks of caam.004.001.04 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]
- ATMKeyDwnldRspn ATMKeyDownloadResponse [1..1]
  - Hdr Header [1..1]Header31
    Information related to the protocol management on a segment of the path from the ATM to the acquirer.
    - MsgFctn Message Function [1..1]ATMMessageFunction2
      Identifies the type of process related to the message.
      - Fctn Function [1..1]MessageFunction11Code
      - ATMSvcCd ATM Service Code [0..1]Max35Text
      - HstSvcCd Host Service Code [0..1]Max35Text
    - PrtcolVrsn Protocol Version [1..1]Max6Text
      Version of the ATM protocol specifications.
    - XchgId Exchange Identification [1..1]Max3NumericText
      Unique identification of an exchange occurrence.
    - CreDtTm Creation Date Time [1..1]ISODateTime
      Date and time at which the message was created.
    - InitgPty Initiating Party [1..1]Max35Text
      Unique identification of the partner that has initiated the exchange.
    - RcptPty Recipient Party [0..1]Max35Text
      Unique identification of the partner that is the recipient of the message exchange.
    - PrcStat Process State [0..1]Max35Text
      State of the sender of the message inside the process flow.
    - Tracblt Traceability [0..*]Traceability4
      Identification of partners involved in exchange from the merchant to the issuer, with the relative timestamp of their exchanges.
      - RlayId Relay Identification [1..1]GenericIdentification77
      - SeqNb Sequence Number [0..1]Max35Text
      - TracDtTmIn Trace Date Time In [1..1]ISODateTime
      - TracDtTmOut Trace Date Time Out [1..1]ISODateTime
  - PrtctdATMKeyDwnldRspn Protected ATM Key Download Response [0..1]ContentInformationType10
    Encrypted body of the message.
    - CnttTp Content Type [1..1]ContentType2Code
      Type of data protection.
    - EnvlpdData Enveloped Data [1..1]EnvelopedData4
      Data protection by encryption or by a digital envelope, with an encryption key.
      - Vrsn Version [0..1]Number
      - Rcpt Recipient [1..*]Recipient4Choice (choice)
      - NcrptdCntt Encrypted Content [0..1]EncryptedContent3
  - ATMKeyDwnldRspn ATM Key Download Response [0..1]ATMKeyDownloadResponse5
    Information related to the response of an ATM key download from an ATM manager.
    - Envt Environment [1..1]ATMEnvironment7
      Environment of the key download.
      - Acqrr Acquirer [0..1]Acquirer7
      - ATMMgr ATM Manager [0..1]Acquirer8
      - HstgNtty Hosting Entity [0..1]TerminalHosting1
      - ATM ATM [1..1]AutomatedTellerMachine3
    - ATMSctyCntxt ATM Security Context [1..1]ATMSecurityContext3
      Context of the ATM for the key download.
      - CurSctySchme Current Security Scheme [1..1]ATMSecurityScheme3Code
      - DvcPrprty Device Property [0..1]ATMEquipment3
      - CurCfgtn Current Configuration [0..1]ATMSecurityConfiguration1
    - ATMChllng ATM Challenge [0..1]Max140Binary
      Random value from the ATM provided during a previous exchange.
    - HstSctyParams Host Security Parameters [1..1]SecurityParameters10
      Security parameters of the host downloading the key.
      - HstChllng Host Challenge [0..1]Max140Binary
      - Key Key [0..*]CryptographicKey12
      - SgntrChc Signature Choice [0..1]ATMSignature2Choice (choice)
    - Cmd Command [0..*]ATMCommand17
      Maintenance command to perform on the ATM.
      - Tp Type [1..1]ATMCommand7Code
      - Urgcy Urgency [1..1]TMSContactLevel2Code
      - DtTm Date Time [0..1]ISODateTime
      - CmdId Command Identification [0..1]ATMCommandIdentification1
      - CmdParams Command Parameters [0..1]ATMCommandParameters1Choice (choice)
  - SctyTrlr Security Trailer [0..1]ContentInformationType13
    Trailer of the message containing a MAC or a digital signature.
    - CnttTp Content Type [1..1]ContentType2Code
      Type of data protection.
    - AuthntcdData Authenticated Data [0..1]AuthenticatedData4
      Data protection by a message authentication code (MAC).
      - Vrsn Version [0..1]Number
      - Rcpt Recipient [1..*]Recipient4Choice (choice)
      - MACAlgo MAC Algorithm [1..1]AlgorithmIdentification15
      - NcpsltdCntt Encapsulated Content [1..1]EncapsulatedContent3
      - MAC MAC [1..1]Max140Binary
    - SgndData Signed Data [0..1]SignedData4
      Data protected by a digital signatures.
      - Vrsn Version [0..1]Number
      - DgstAlgo Digest Algorithm [1..*]AlgorithmIdentification16
      - NcpsltdCntt Encapsulated Content [1..1]EncapsulatedContent3
      - Cert Certificate [0..*]Max5000Binary
      - Sgnr Signer [1..*]Signer3

Have a caam.004 message? Paste it into the parser to see every element with its name and definition, and format checks on BICs, IBANs, dates and amounts.

caam.004 questions

What is the latest version of caam.004?: The latest version in the ISO 20022 e-Repository release of 24 April 2025 is caam.004.001.04.
What is the root element of caam.004?: The XML document is Document with the namespace urn:iso:std:iso:20022:tech:xsd:caam.004.001.04, and its message element is ATMKeyDwnldRspn (ATMKeyDownloadResponse).
Is there an MT equivalent of caam.004?: 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.