cain.001.001.03
AuthorisationInitiation message is sent by an acquirer or an agent to an issuer to request approval of a card transaction by the issuer or to inform the issuer about the completion of the authorisation. It can also be sent by an issuer to an acquirer or agent to advise about the result of an authorisation already performed.
Message Construction
Every ISO20022 message has at the highest level what we call ‘building blocks’. Because the message is constructed as immutable records, the association is by composition. Below you can see the relationship between the message and its constituent building blocks: For comparison, see the ISO20022 official specification
classDiagram direction LR %% AuthorisationInitiationV03 recursion level 0 with max 0 AuthorisationInitiationV03 *-- "1..1" Header62 : Header AuthorisationInitiationV03 *-- "1..1" AuthorisationInitiation2 : Body AuthorisationInitiationV03 *-- "0..1" ContentInformationType20 : SecurityTrailer
Now, we will zero-in one-by-one on each of these building blocks.
Header building block
Information related to the management of the protocol. Set of characteristics related to the protocol. For comparison, see the ISO20022 official specification
classDiagram direction tb %% Header62 recursion level 0 with max 1 class Header62{ MessageFunction MessageFunction16Code ProtocolVersion IsoMax2048Text ExchangeIdentification IsoMax35Text ReTransmissionCounter IsoMax3NumericText CreationDateTime IsoISODateTime } Header62 *-- "0..1" BatchManagementInformation1 : BatchManagementInformation Header62 *-- "1..1" GenericIdentification183 : InitiatingParty Header62 *-- "0..1" GenericIdentification183 : RecipientParty Header62 *-- "0..0" AdditionalData1 : TraceData Header62 *-- "0..0" Traceability9 : Traceability %% BatchManagementInformation1 recursion level 1 with max 1 class BatchManagementInformation1{ CollectionIdentification IsoMax35Text BatchIdentification IsoMax35Text MessageSequenceNumber IsoMax15NumericText MessageChecksumInputValue IsoMax140Binary } %% GenericIdentification183 recursion level 1 with max 1 class GenericIdentification183{ Identification IsoMax35Text Type PartyType17Code OtherType IsoMax35Text Assigner PartyType18Code Country ISOMax3ACountryCode ShortName IsoMax35Text } %% GenericIdentification183 recursion level 1 with max 1 class GenericIdentification183{ Identification IsoMax35Text Type PartyType17Code OtherType IsoMax35Text Assigner PartyType18Code Country ISOMax3ACountryCode ShortName IsoMax35Text } %% AdditionalData1 recursion level 1 with max 1 class AdditionalData1{ Type IsoMax35Text Value IsoMax2048Text } %% Traceability9 recursion level 1 with max 1 class Traceability9{ TraceDateTimeIn IsoISODateTime TraceDateTimeOut IsoISODateTime } Traceability9 *-- "1..1" GenericIdentification183 : RelayIdentification
Header62 members
Member name | Description | Data Type / Multiplicity |
---|---|---|
MessageFunction | Identifies the type of process related to the message. | MessageFunction16Code - Required 1..1 |
ProtocolVersion | Version of the acquirer to issuer protocol specifications. | IsoMax2048Text - Required 1..1 |
ExchangeIdentification | Unique identification of an exchange of messages between two parties. | IsoMax35Text - Optional 0..1 |
ReTransmissionCounter | Number of retransmission of the message. Incremented by one for each retransmission. | IsoMax3NumericText - Optional 0..1 |
CreationDateTime | Date and time at which the message was sent. | IsoISODateTime - Required 1..1 |
BatchManagementInformation | Information related to the batch and the collection to which the message belongs if any. | BatchManagementInformation1 - Optional 0..1 |
InitiatingParty | Unique identification of the partner that has initiated the exchange. | GenericIdentification183 - Required 1..1 |
RecipientParty | Unique identification of the partner that is the recipient of the message exchange. | GenericIdentification183 - Optional 0..1 |
TraceData | Information sent in the request message to be returned in the response one, for instance to help in the retrieval of the context of the exchange. | AdditionalData1 - Unknown 0..0 |
Traceability | Identification of partners involved in exchange from the merchant to the issuer, with the relative timestamp of their exchanges. | Traceability9 - Unknown 0..0 |
Body building block
Information related to the authorisation initiation. Information related to the authorisation initiation message. For comparison, see the ISO20022 official specification
classDiagram direction tb %% AuthorisationInitiation2 recursion level 0 with max 1 class AuthorisationInitiation2{ ICCRelatedData IsoMax10KHexBinaryText } AuthorisationInitiation2 *-- "1..1" Environment17 : Environment AuthorisationInitiation2 *-- "1..1" Context10 : Context AuthorisationInitiation2 *-- "1..1" Transaction142 : Transaction AuthorisationInitiation2 *-- "0..1" AddendumData3 : AddendumData AuthorisationInitiation2 *-- "0..1" ProcessingResult16 : ProcessingResult AuthorisationInitiation2 *-- "0..0" ProtectedData1 : ProtectedData AuthorisationInitiation2 *-- "0..0" SupplementaryData1 : SupplementaryData %% Environment17 recursion level 1 with max 1 Environment17 *-- "1..1" PartyIdentification263 : Acquirer Environment17 *-- "0..1" PartyIdentification263 : Originator Environment17 *-- "0..1" PartyIdentification263 : Sender Environment17 *-- "0..1" PartyIdentification263 : Receiver Environment17 *-- "0..1" PartyIdentification255 : Acceptor Environment17 *-- "0..1" PartyIdentification263 : Destination Environment17 *-- "0..1" PartyIdentification257 : Payer Environment17 *-- "0..1" PartyIdentification257 : Payee Environment17 *-- "0..1" Terminal4 : Terminal Environment17 *-- "0..1" PartyIdentification263 : Issuer Environment17 *-- "0..1" CardData6 : Card Environment17 *-- "0..1" CustomerDevice4 : CustomerDevice Environment17 *-- "0..1" Wallet2 : Wallet Environment17 *-- "0..1" Token2 : Token Environment17 *-- "0..1" Cardholder19 : Cardholder %% Context10 recursion level 1 with max 1 Context10 *-- "1..1" PointOfServiceContext3 : PointOfServiceContext Context10 *-- "1..1" TransactionContext7 : TransactionContext Context10 *-- "0..0" Verification5 : Verification Context10 *-- "0..0" RiskContext2 : RiskContext Context10 *-- "0..1" SaleContext8 : SaleContext %% Transaction142 recursion level 1 with max 1 class Transaction142{ TransactionType ISO8583TransactionTypeCode TransactionSubType IsoMax35Text TransactionAttribute TransactionAttribute2Code OtherTransactionAttribute IsoMax35Text MessageReason ISO8583MessageReasonCode AlternateMessageReason IsoMax256Text PreAuthorisationTimeLimit IsoMax6NumericText AssociatedDataIndicator IsoTrueFalseIndicator AssociatedDataReference IsoMax70Text AssociatedDataDestination IsoMax35Text TransactionDescription IsoMax1000Text } Transaction142 *-- "0..0" AdditionalService2 : AdditionalService Transaction142 *-- "0..0" SpecialProgrammeQualification1 : SpecialProgrammeQualification Transaction142 *-- "1..1" TransactionIdentification51 : TransactionIdentification Transaction142 *-- "0..0" DisputeData3 : DisputeData Transaction142 *-- "1..1" TransactionAmounts2 : TransactionAmounts Transaction142 *-- "0..0" AdditionalAmounts3 : AdditionalAmount Transaction142 *-- "0..0" AdditionalFee2 : AdditionalFee Transaction142 *-- "0..0" AdditionalFee2 : OriginalAdditionalFee Transaction142 *-- "0..0" DepositDetails2 : DepositDetails Transaction142 *-- "0..1" FundingService2 : FundsServices Transaction142 *-- "0..1" AccountDetails3 : AccountFrom Transaction142 *-- "0..1" AccountDetails3 : AccountTo Transaction142 *-- "0..0" AdditionalData1 : AdditionalData %% AddendumData3 recursion level 1 with max 1 class AddendumData3{ PurchaseIdentifierType PurchaseIdentifierType1Code OtherPurchaseIdentifierType IsoMax35Text PurchaseIdentifier IsoMax99Text } AddendumData3 *-- "0..1" AdditionalAcceptorData1 : AdditionalAcceptorData AddendumData3 *-- "0..1" Customer4 : Customer AddendumData3 *-- "0..1" Sale2 : Sale AddendumData3 *-- "0..1" FleetData4 : Fleet AddendumData3 *-- "0..1" Invoice2 : Invoice AddendumData3 *-- "0..0" TravelAgency3 : TravelAgency AddendumData3 *-- "0..1" PassengerTransport2 : PassengerTransport AddendumData3 *-- "0..0" VehicleRentalService2 : VehicleRental AddendumData3 *-- "0..0" Lodging3 : Lodging AddendumData3 *-- "0..1" ShippingData2 : ShippingData AddendumData3 *-- "0..1" TelecomServices2 : TelecommunicationServices AddendumData3 *-- "0..0" TemporaryServices2 : TemporaryServices AddendumData3 *-- "0..1" Instalment4 : Instalment AddendumData3 *-- "0..0" AdditionalData1 : AdditionalData %% ProcessingResult16 recursion level 1 with max 1 class ProcessingResult16{ ApprovalCode IsoExact6AlphaNumericText ActionRequired IsoYesNoIndicator } ProcessingResult16 *-- "0..1" ApprovalEntity2 : ResponseSource ProcessingResult16 *-- "0..1" ResultData7 : ResultData ProcessingResult16 *-- "0..1" ResultData7 : OriginalResultData ProcessingResult16 *-- "0..0" Action13 : Action ProcessingResult16 *-- "0..0" AdditionalAction1 : AdditionalAction ProcessingResult16 *-- "0..0" AdditionalInformation29 : AdditionalInformation %% ProtectedData1 recursion level 1 with max 1 class ProtectedData1{ ContentType ContentType3Code } ProtectedData1 *-- "0..1" EnvelopedData6 : EnvelopedData ProtectedData1 *-- "0..1" EncryptedData1 : EncryptedData %% SupplementaryData1 recursion level 1 with max 1 class SupplementaryData1{ PlaceAndName IsoMax350Text } SupplementaryData1 *-- "1..1" IsoSupplementaryDataEnvelope1 : Envelope
AuthorisationInitiation2 members
Member name | Description | Data Type / Multiplicity |
---|---|---|
Environment | Contains or describes the information pertaining to the actors interacting with the transaction. | Environment17 - Required 1..1 |
Context | Contains or describes conditions and characteristics of the transaction. | Context10 - Required 1..1 |
Transaction | Card transaction for which an authorisation is requested. | Transaction142 - Required 1..1 |
AddendumData | Component contains data structures applicable to certain industries that require specific data within transaction messages. | AddendumData3 - Optional 0..1 |
ProcessingResult | Outcome of the processing of the authorisation. | ProcessingResult16 - Optional 0..1 |
ICCRelatedData | Data related to an integrated circuit card application embedded in the payment card of the cardholder. ISO 8583 bit 55 | IsoMax10KHexBinaryText - Optional 0..1 |
ProtectedData | Contains protected data and the attributes used to protect the data. | ProtectedData1 - Unknown 0..0 |
SupplementaryData | Additional information that can not be captured in the structured fields and/or other specific block. | SupplementaryData1 - Unknown 0..0 |
SecurityTrailer building block
Trailer of the message containing a MAC. General cryptographic message syntax (CMS) containing encrypted data. For comparison, see the ISO20022 official specification
classDiagram direction tb %% ContentInformationType20 recursion level 0 with max 1 class ContentInformationType20{ MAC IsoMax8HexBinaryText } ContentInformationType20 *-- "1..1" MACData1 : MACData %% MACData1 recursion level 1 with max 1 class MACData1{ Control IsoExact1HexBinaryText KeySetIdentifier IsoMax8NumericText DerivedInformation IsoMax32HexBinaryText Algorithm IsoMax2NumericText KeyLength IsoMax4NumericText KeyProtection IsoMax2NumericText KeyIndex IsoMax5NumericText PaddingMethod IsoMax2NumericText InitialisationVector IsoMax32HexBinaryText }
ContentInformationType20 members
Member name | Description | Data Type / Multiplicity |
---|---|---|
MACData | Type of data protection. ISO 8583:87 bit 53 or 110 ISO 8583:93 bit 53 or 111 ISO 8583:2003 bit 53 or 50 | MACData1 - Required 1..1 |
MAC | Message Authentication Code data. Binary, length of 8 ISO 8583 bit 64 or bit 128 | IsoMax8HexBinaryText - Required 1..1 |
Extensibility and generalization considerations
To facilitate generalized design patterns in the system, the AuthorisationInitiationV03 implementation follows a specific implementaiton pattern. First of all, AuthorisationInitiationV03 impleemnts IOuterRecord indicating it is the outermost logical part of the message definition. Like all message wrappers, AuthorisationInitiationV03Document implements IOuterDocument. Because AuthorisationInitiationV03 implements IOuterDocument, it is a suitable template parameter for IOuterDocument, and causes the internal ‘Message’ to be of type AuthorisationInitiationV03.
classDiagram class IOuterRecord AuthorisationInitiationV03 --|> IOuterRecord : Implements AuthorisationInitiationV03Document --|> IOuterDocument~AuthorisationInitiationV03~ : Implements class IOuterDocument~AuthorisationInitiationV03~ { AuthorisationInitiationV03 Message }
Document wrapper for serialization
The only real purpose AuthorisationInitiationV03Document serves is to cause the document to be serialized into the ‘urn:iso:std:iso:20022:tech:xsd:cain.001.001.03’ namespace. Therefore, it will probably be the usual practice to build the message and construct this wrapper at the last minute using AuthorisationInitiationV03.ToDocument() method. The returned AuthorisationInitiationV03Document value will serialize correctly according to ISO 20022 standards.
classDiagram AuthorisationInitiationV03Document *-- AuthorisationInitiationV03 : Document
Sample of message format
This is an abbreviated version of what the message should look like.
<Document xmlns="urn:iso:std:iso:20022:tech:xsd:cain.001.001.03">
<AuthstnInitn>
<Hdr>
<!-- Header inner content -->
</Hdr>
<Body>
<!-- Body inner content -->
</Body>
<SctyTrlr>
<!-- SecurityTrailer inner content -->
</SctyTrlr>
</AuthstnInitn>
</Document>
Data from ISO specification
This is the technical data from the specification document.
<messageDefinition
xmi:id="_eVcboYEKEeu6D49Gi-ZPwQ"
previousVersion="_SBa-kFKeEeeFcfYfFkVztg"
name="AuthorisationInitiationV03"
definition="AuthorisationInitiation message is sent by an acquirer or an agent to an issuer to request approval of a card transaction by the issuer or to inform the issuer about the completion of the authorisation. It can also be sent by an issuer to an acquirer or agent to advise about the result of an authorisation already performed.

"
registrationStatus="Registered"
messageSet="_kT2-dARsEeWTJNHF-ohSqw"
xmlTag="AuthstnInitn"
rootElement="Document"
xmlns:xmi="http://www.omg.org/XMI">
<messageBuildingBlock
xmi:id="_eVcbo4EKEeu6D49Gi-ZPwQ"
previousVersion="_BfrOEFKfEeeFcfYfFkVztg"
name="Header"
definition="Information related to the management of the protocol."
registrationStatus="Provisionally Registered"
maxOccurs="1"
minOccurs="1"
xmlTag="Hdr"
complexType="_yws50RvUEey2RdTw-AkXzg" />
<messageBuildingBlock
xmi:id="_eVcbpYEKEeu6D49Gi-ZPwQ"
previousVersion="_RkTIQFKfEeeFcfYfFkVztg"
name="Body"
definition="Information related to the authorisation initiation."
registrationStatus="Provisionally Registered"
maxOccurs="1"
minOccurs="1"
xmlTag="Body"
complexType="_KnK6MYEKEeu6D49Gi-ZPwQ" />
<messageBuildingBlock
xmi:id="_eVcbp4EKEeu6D49Gi-ZPwQ"
previousVersion="_e333IFKfEeeFcfYfFkVztg"
name="SecurityTrailer"
definition="Trailer of the message containing a MAC."
registrationStatus="Provisionally Registered"
maxOccurs="1"
minOccurs="0"
xmlTag="SctyTrlr"
complexType="_fP-osaQuEeeWXKXf3KjtmQ" />
<messageDefinitionIdentifier
businessArea="cain"
messageFunctionality="001"
flavour="001"
version="03" />
</messageDefinition>
ISO Building Blocks
The following items are used as building blocks to construct this message.