AcquirerRejection

cain.013.001.01

The AcquirerRejection message is sent by any party, to reject an Acquirer to Issuer message.

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
%% AcquirerRejection recursion level 0 with max 0
AcquirerRejection *-- "1..1" Header19 : Header
AcquirerRejection *-- "1..1" AcceptorRejection4 : Reject
  

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

Header building block

Information related to the protocol management. Set of characteristics related to the protocol. For comparison, see the ISO20022 official specification

classDiagram
   direction tb
%% Header19 recursion level 0 with max 1
class Header19{
    MessageFunction MessageFunction6Code
    OriginalMessageFunction MessageFunction6Code
    ProtocolVersion IsoMax6Text
    ExchangeIdentification IsoMax3NumericText
    ReTransmissionCounter IsoMax3NumericText
    CreationDateTime IsoISODateTime
}
Header19 *-- "0..1" GenericIdentification73 : InitiatingParty
Header19 *-- "0..1" GenericIdentification73 : RecipientParty
Header19 *-- "0..0" Traceability3 : Traceability
%% GenericIdentification73 recursion level 1 with max 1
class GenericIdentification73{
    Identification IsoMax35Text
    Type PartyType9Code
    Issuer PartyType9Code
    Country IsoMin2Max3AlphaText
    ShortName IsoMax35Text
}
%% GenericIdentification73 recursion level 1 with max 1
class GenericIdentification73{
    Identification IsoMax35Text
    Type PartyType9Code
    Issuer PartyType9Code
    Country IsoMin2Max3AlphaText
    ShortName IsoMax35Text
}
%% Traceability3 recursion level 1 with max 1
class Traceability3{
    TraceDateTimeIn IsoISODateTime
    TraceDateTimeOut IsoISODateTime
}
Traceability3 *-- "1..1" GenericIdentification74 : RelayIdentification
  

Header19 members

Member name Description Data Type / Multiplicity
MessageFunction Identifies the type of process related to the message. MessageFunction6Code - Required 1..1
OriginalMessageFunction Identifies the type of process related to the message which has to be reversed. MessageFunction6Code - Optional 0..1
ProtocolVersion Version of the acquirer to issuer protocol specifications. IsoMax6Text - Required 1..1
ExchangeIdentification Unique identification of an exchange occurrence. IsoMax3NumericText - Required 1..1
ReTransmissionCounter Number of retransmission of the message. Incremented by 1 for each retransmission. IsoMax3NumericText - Optional 0..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. GenericIdentification73 - Optional 0..1
RecipientParty Unique identification of the partner that is the recipient of the message exchange. GenericIdentification73 - Optional 0..1
Traceability Identification of partners involved in exchange from the merchant to the issuer, with the relative timestamp of their exchanges. Traceability3 - Unknown 0..0

Reject building block

Information related to the reject. Reject of an exchange. For comparison, see the ISO20022 official specification

classDiagram
   direction tb
%% AcceptorRejection4 recursion level 0 with max 1
class AcceptorRejection4{
    RejectReason RejectReason1Code
    MessageInError IsoMax100KBinary
}
AcceptorRejection4 *-- "0..0" ErrorReporting1 : ErrorReporting
%% ErrorReporting1 recursion level 1 with max 1
class ErrorReporting1{
    Type IsoMax35Text
    Description IsoMax500Text
}
  

AcceptorRejection4 members

Member name Description Data Type / Multiplicity
RejectReason Reject reason of the message. RejectReason1Code - Required 1..1
ErrorReporting Detailed description of an error that caused the rejection for further analysis. ErrorReporting1 - Unknown 0..0
MessageInError Original request that caused the party to reject it. IsoMax100KBinary - Optional 0..1

Extensibility and generalization considerations

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

classDiagram
    class IOuterRecord
    AcquirerRejection --|> IOuterRecord : Implements
    AcquirerRejectionDocument --|> IOuterDocument~AcquirerRejection~ : Implements
    class IOuterDocument~AcquirerRejection~ {
        AcquirerRejection Message
     }
  

Document wrapper for serialization

The only real purpose AcquirerRejectionDocument serves is to cause the document to be serialized into the ‘urn:iso:std:iso:20022:tech:xsd:cain.013.001.01’ namespace. Therefore, it will probably be the usual practice to build the message and construct this wrapper at the last minute using AcquirerRejection.ToDocument() method. The returned AcquirerRejectionDocument value will serialize correctly according to ISO 20022 standards.

classDiagram
    AcquirerRejectionDocument *-- AcquirerRejection : 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.013.001.01">
    <AcqrrRjctn>
        <Hdr>
            <!-- Header inner content -->
        </Hdr>
        <Rjct>
            <!-- Reject inner content -->
        </Rjct>
    </AcqrrRjctn>
</Document>

Data from ISO specification

This is the technical data from the specification document.

<messageDefinition
  xmi:id="_ohEDEHvSEeS2PZh7wUMQog"
  nextVersions="_ow6JocsZEeizUq4cFQ71-Q"
  name="AcquirerRejection"
  definition="The AcquirerRejection message is sent by any party, to reject an Acquirer to Issuer message."
  registrationStatus="Registered"
  messageSet="_urpIICeJEeOCeO5e7islRQ"
  xmlTag="AcqrrRjctn"
  rootElement="Document"
  xmlns:xmi="http://www.omg.org/XMI">
  <messageBuildingBlock
    xmi:id="_DiKccHvUEeS7Wv4oKCO8_A"
    name="Header"
    definition="Information related to the protocol management."
    registrationStatus="Provisionally Registered"
    maxOccurs="1"
    minOccurs="1"
    xmlTag="Hdr"
    complexType="_Hrm-EXvUEeS7Wv4oKCO8_A" />
  <messageBuildingBlock
    xmi:id="_e8V5oHvUEeS7Wv4oKCO8_A"
    name="Reject"
    definition="Information related to the reject."
    registrationStatus="Provisionally Registered"
    maxOccurs="1"
    minOccurs="1"
    xmlTag="Rjct"
    complexType="_MZve4YPcEeSgq87JnUGd8A" />
  <messageDefinitionIdentifier
    businessArea="cain"
    messageFunctionality="013"
    flavour="001"
    version="01" />
</messageDefinition>

ISO Building Blocks

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