SaleToPOIServiceRequestV01

casp.001.001.01

This financial service is a request by the Sale system of a service to execute on POI system.

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
%% SaleToPOIServiceRequestV01 recursion level 0 with max 0
SaleToPOIServiceRequestV01 *-- "1..1" Header37 : Header
SaleToPOIServiceRequestV01 *-- "1..1" ServiceRequest2 : ServiceRequest
SaleToPOIServiceRequestV01 *-- "0..1" ContentInformationType18 : SecurityTrailer
  

Now, we will zero-in one-by-one on each of these building blocks.

Header building block

Set of characteristics related to the transfer of the request. Set of characteristics related to the protocol. For comparison, see the ISO20022 official specification

classDiagram
   direction tb
%% Header37 recursion level 0 with max 1
class Header37{
    MessageFunction RetailerMessage1Code
    ProtocolVersion IsoMax6Text
    ExchangeIdentification IsoMax35Text
    CreationDateTime IsoISODateTime
}
Header37 *-- "1..1" GenericIdentification171 : InitiatingParty
Header37 *-- "0..1" GenericIdentification171 : RecipientParty
Header37 *-- "0..0" Traceability6 : Traceability
%% GenericIdentification171 recursion level 1 with max 1
class GenericIdentification171{
    Identification IsoMax35Text
    Type PartyType3Code
    Issuer PartyType4Code
    Country IsoMin2Max3AlphaText
    ShortName IsoMax35Text
}
GenericIdentification171 *-- "0..1" NetworkParameters5 : RemoteAccess
GenericIdentification171 *-- "0..1" Geolocation1 : Geolocation
%% GenericIdentification171 recursion level 1 with max 1
class GenericIdentification171{
    Identification IsoMax35Text
    Type PartyType3Code
    Issuer PartyType4Code
    Country IsoMin2Max3AlphaText
    ShortName IsoMax35Text
}
GenericIdentification171 *-- "0..1" NetworkParameters5 : RemoteAccess
GenericIdentification171 *-- "0..1" Geolocation1 : Geolocation
%% Traceability6 recursion level 1 with max 1
class Traceability6{
    ProtocolName IsoMax35Text
    ProtocolVersion IsoMax6Text
    TraceDateTimeIn IsoISODateTime
    TraceDateTimeOut IsoISODateTime
}
Traceability6 *-- "1..1" GenericIdentification171 : RelayIdentification
  

Header37 members

Member name Description Data Type / Multiplicity
MessageFunction Identifies the type of process related to the message. RetailerMessage1Code - Required 1..1
ProtocolVersion Version of the acquirer protocol specifications. IsoMax6Text - Required 1..1
ExchangeIdentification Unique identification of an exchange occurrence. IsoMax35Text - Required 1..1
CreationDateTime Date and time at which the message was created. IsoISODateTime - Required 1..1
InitiatingParty Unique identification of the partner that has initiated the exchange. GenericIdentification171 - Required 1..1
RecipientParty Unique identification of the partner that is the recipient of the message exchange. GenericIdentification171 - Optional 0..1
Traceability Identification of partners involved in exchange from the merchant to the issuer, with the relative timestamp of their exchanges. Traceability6 - Unknown 0..0

ServiceRequest building block

Information related to a service request. This component defines the service to be called. For comparison, see the ISO20022 official specification

classDiagram
   direction tb
%% ServiceRequest2 recursion level 0 with max 1
class ServiceRequest2{
    ServiceContent RetailerService2Code
}
ServiceRequest2 *-- "1..1" CardPaymentEnvironment73 : Environment
ServiceRequest2 *-- "1..1" CardPaymentContext27 : Context
ServiceRequest2 *-- "0..1" PaymentRequest1 : PaymentRequest
ServiceRequest2 *-- "0..1" ReversalRequest1 : ReversalRequest
ServiceRequest2 *-- "0..1" BalanceInquiryRequest2 : BalanceInquiryRequest
ServiceRequest2 *-- "0..1" LoyaltyRequest1 : LoyaltyRequest
ServiceRequest2 *-- "0..1" StoredValueRequest2 : StoredValueRequest
ServiceRequest2 *-- "0..1" BatchRequest1 : BatchRequest
ServiceRequest2 *-- "0..1" EnableServiceRequest1 : EnableServiceRequest
ServiceRequest2 *-- "0..1" CardAcquisitionRequest2 : CardAcquisitionRequest
ServiceRequest2 *-- "0..0" SupplementaryData1 : SupplementaryData
%% CardPaymentEnvironment73 recursion level 1 with max 1
CardPaymentEnvironment73 *-- "0..1" Acquirer9 : Acquirer
CardPaymentEnvironment73 *-- "0..1" Organisation32 : Merchant
CardPaymentEnvironment73 *-- "0..1" PointOfInteraction9 : POI
CardPaymentEnvironment73 *-- "0..1" PaymentCard28 : Card
CardPaymentEnvironment73 *-- "0..1" Check1 : Check
CardPaymentEnvironment73 *-- "0..0" StoredValueAccount1 : StoredValueAccount
CardPaymentEnvironment73 *-- "0..0" LoyaltyAccount1 : LoyaltyAccount
CardPaymentEnvironment73 *-- "0..1" CustomerDevice1 : CustomerDevice
CardPaymentEnvironment73 *-- "0..1" CustomerDevice1 : Wallet
CardPaymentEnvironment73 *-- "0..1" CardPaymentToken4 : PaymentToken
CardPaymentEnvironment73 *-- "0..1" Cardholder14 : Cardholder
CardPaymentEnvironment73 *-- "0..1" ContentInformationType17 : ProtectedCardholderData
CardPaymentEnvironment73 *-- "0..1" RetailerSaleEnvironment2 : SaleEnvironment
%% CardPaymentContext27 recursion level 1 with max 1
CardPaymentContext27 *-- "0..1" PaymentContext26 : PaymentContext
CardPaymentContext27 *-- "0..1" SaleContext3 : SaleContext
CardPaymentContext27 *-- "0..1" CardDirectDebit2 : DirectDebitContext
%% PaymentRequest1 recursion level 1 with max 1
PaymentRequest1 *-- "0..1" CardPaymentTransaction91 : PaymentTransaction
PaymentRequest1 *-- "0..0" LoyaltyRequestData1 : LoyaltyData
%% ReversalRequest1 recursion level 1 with max 1
class ReversalRequest1{
    ReversalReason ReversalReason1Code
    ReversedAmount IsoImpliedCurrencyAndAmount
}
ReversalRequest1 *-- "0..1" CardPaymentTransaction91 : OriginalPaymentTransaction
ReversalRequest1 *-- "0..1" CustomerOrder1 : CustomerOrder
%% BalanceInquiryRequest2 recursion level 1 with max 1
BalanceInquiryRequest2 *-- "0..1" PaymentAccountRequest1 : PaymentAccountRequest
BalanceInquiryRequest2 *-- "0..1" LoyaltyAccountRequest1 : LoyaltyAccountRequest
BalanceInquiryRequest2 *-- "0..1" StoredValueRequest2 : StoredValueAccountRequest
%% LoyaltyRequest1 recursion level 1 with max 1
LoyaltyRequest1 *-- "0..1" CustomerOrder1 : CustomerOrder
LoyaltyRequest1 *-- "1..1" LoyaltyTransaction1 : Transaction
LoyaltyRequest1 *-- "0..0" LoyaltyRequestData1 : Data
%% StoredValueRequest2 recursion level 1 with max 1
StoredValueRequest2 *-- "1..0" StoredValueData2 : Data
%% BatchRequest1 recursion level 1 with max 1
class BatchRequest1{
    RemoveAllFlag IsoTrueFalseIndicator
}
BatchRequest1 *-- "0..0" ITransactionToPerform1Choice : TransactionToPerform
%% EnableServiceRequest1 recursion level 1 with max 1
class EnableServiceRequest1{
    TransactionAction TransactionAction1Code
    ServicesEnabled RetailerService2Code
}
EnableServiceRequest1 *-- "0..1" ActionMessage6 : DisplayOutput
%% CardAcquisitionRequest2 recursion level 1 with max 1
class CardAcquisitionRequest2{
    AllowedPaymentBrand IsoMax35Text
    AllowedLoyaltyBrand IsoMax35Text
    ForceCustomerSelectionFlag IsoTrueFalseIndicator
    TotalAmount IsoImpliedCurrencyAndAmount
    PaymentType CardPaymentServiceType13Code
    CashBackFlag IsoTrueFalseIndicator
    SaleToPOIData IsoMax70Text
    SaleToAcquirerData IsoMax70Text
    SaleToIssuerData IsoMax70Text
}
%% SupplementaryData1 recursion level 1 with max 1
class SupplementaryData1{
    PlaceAndName IsoMax350Text
}
SupplementaryData1 *-- "1..1" IsoSupplementaryDataEnvelope1 : Envelope
  

ServiceRequest2 members

Member name Description Data Type / Multiplicity
Environment Environment of the transaction. CardPaymentEnvironment73 - Required 1..1
Context Context in which the transaction is performed (payment and sale). CardPaymentContext27 - Required 1..1
ServiceContent Define the type of service requested. RetailerService2Code - Required 1..1
PaymentRequest Content of the payment request. PaymentRequest1 - Optional 0..1
ReversalRequest Content of the reversal request. ReversalRequest1 - Optional 0..1
BalanceInquiryRequest Content of a Balance Inquiry Request. BalanceInquiryRequest2 - Optional 0..1
LoyaltyRequest Content of the Loyalty Request. LoyaltyRequest1 - Optional 0..1
StoredValueRequest Content of a Stored Value Request. StoredValueRequest2 - Optional 0..1
BatchRequest Content of the Batch Request. BatchRequest1 - Optional 0..1
EnableServiceRequest Content of the Enable Service Request. EnableServiceRequest1 - Optional 0..1
CardAcquisitionRequest Content of the Card Acquisition Request. CardAcquisitionRequest2 - Optional 0..1
SupplementaryData Additional information incorporated as an extension to the message. SupplementaryData1 - Unknown 0..0

SecurityTrailer building block

Trailer of the message containing a MAC or a digital signature. General cryptographic message syntax (CMS) containing data. protected by a MAC or a digital signature. For comparison, see the ISO20022 official specification

classDiagram
   direction tb
%% ContentInformationType18 recursion level 0 with max 1
class ContentInformationType18{
    ContentType ContentType2Code
}
ContentInformationType18 *-- "0..1" AuthenticatedData5 : AuthenticatedData
ContentInformationType18 *-- "0..1" SignedData5 : SignedData
%% AuthenticatedData5 recursion level 1 with max 1
class AuthenticatedData5{
    Version IsoNumber
    MAC IsoMax140Binary
}
AuthenticatedData5 *-- "1..0" IRecipient6Choice : Recipient
AuthenticatedData5 *-- "1..1" AlgorithmIdentification22 : MACAlgorithm
AuthenticatedData5 *-- "1..1" EncapsulatedContent3 : EncapsulatedContent
%% SignedData5 recursion level 1 with max 1
class SignedData5{
    Version IsoNumber
    Certificate IsoMax5000Binary
}
SignedData5 *-- "0..0" AlgorithmIdentification21 : DigestAlgorithm
SignedData5 *-- "0..1" EncapsulatedContent3 : EncapsulatedContent
SignedData5 *-- "0..0" Signer4 : Signer
  

ContentInformationType18 members

Member name Description Data Type / Multiplicity
ContentType Type of data protection. ContentType2Code - Required 1..1
AuthenticatedData Data protection by a message authentication code (MAC). AuthenticatedData5 - Optional 0..1
SignedData Data protected by a digital signatures. SignedData5 - Optional 0..1

Extensibility and generalization considerations

To facilitate generalized design patterns in the system, the SaleToPOIServiceRequestV01 implementation follows a specific implementaiton pattern. First of all, SaleToPOIServiceRequestV01 impleemnts IOuterRecord indicating it is the outermost logical part of the message definition. Like all message wrappers, SaleToPOIServiceRequestV01Document implements IOuterDocument. Because SaleToPOIServiceRequestV01 implements IOuterDocument, it is a suitable template parameter for IOuterDocument, and causes the internal ‘Message’ to be of type SaleToPOIServiceRequestV01.

classDiagram
    class IOuterRecord
    SaleToPOIServiceRequestV01 --|> IOuterRecord : Implements
    SaleToPOIServiceRequestV01Document --|> IOuterDocument~SaleToPOIServiceRequestV01~ : Implements
    class IOuterDocument~SaleToPOIServiceRequestV01~ {
        SaleToPOIServiceRequestV01 Message
     }
  

Document wrapper for serialization

The only real purpose SaleToPOIServiceRequestV01Document serves is to cause the document to be serialized into the ‘urn:iso:std:iso:20022:tech:xsd:casp.001.001.01’ namespace. Therefore, it will probably be the usual practice to build the message and construct this wrapper at the last minute using SaleToPOIServiceRequestV01.ToDocument() method. The returned SaleToPOIServiceRequestV01Document value will serialize correctly according to ISO 20022 standards.

classDiagram
    SaleToPOIServiceRequestV01Document *-- SaleToPOIServiceRequestV01 : 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:casp.001.001.01">
    <SaleToPOISvcReq>
        <Hdr>
            <!-- Header inner content -->
        </Hdr>
        <SvcReq>
            <!-- ServiceRequest inner content -->
        </SvcReq>
        <SctyTrlr>
            <!-- SecurityTrailer inner content -->
        </SctyTrlr>
    </SaleToPOISvcReq>
</Document>

Data from ISO specification

This is the technical data from the specification document.

<messageDefinition
  xmi:id="_dTGYUYX_EemxIqbaFEE8-w"
  nextVersions="_cFuKEQ1VEeqjM-rxn3HuXQ"
  name="SaleToPOIServiceRequestV01"
  definition="This financial service is a request by the Sale system of a service to execute on POI system."
  registrationStatus="Registered"
  messageSet="_urpIICeJEeOCeO5e7islRQ"
  xmlTag="SaleToPOISvcReq"
  rootElement="Document"
  xmlns:xmi="http://www.omg.org/XMI">
  <messageBuildingBlock
    xmi:id="_dTGYU4X_EemxIqbaFEE8-w"
    nextVersions="_cFuKEw1VEeqjM-rxn3HuXQ"
    name="Header"
    definition="Set of characteristics related to the transfer of the request."
    registrationStatus="Provisionally Registered"
    maxOccurs="1"
    minOccurs="1"
    xmlTag="Hdr"
    complexType="_vgI-odj3EeiojJsa6FYyew" />
  <messageBuildingBlock
    xmi:id="_dTGYVYX_EemxIqbaFEE8-w"
    nextVersions="_cFuKFQ1VEeqjM-rxn3HuXQ"
    name="ServiceRequest"
    definition="Information related to a service request."
    registrationStatus="Provisionally Registered"
    maxOccurs="1"
    minOccurs="1"
    xmlTag="SvcReq"
    complexType="_ndUwoYX_EemxIqbaFEE8-w" />
  <messageBuildingBlock
    xmi:id="_dTGYV4X_EemxIqbaFEE8-w"
    nextVersions="_cFuKFw1VEeqjM-rxn3HuXQ"
    name="SecurityTrailer"
    definition="Trailer of the message containing a MAC or a digital signature."
    registrationStatus="Provisionally Registered"
    maxOccurs="1"
    minOccurs="0"
    xmlTag="SctyTrlr"
    complexType="__DJZ4dtZEee9e6xduATmQg" />
  <messageDefinitionIdentifier
    businessArea="casp"
    messageFunctionality="001"
    flavour="001"
    version="01" />
</messageDefinition>

ISO Building Blocks

The following items are used as building blocks to construct this message.