Catalogue of messages 

The catalogue of messages gives access to the current, latest version of approved ISO 20022 message definitions. Although previous versions remain available in the ISO 20022 Message Archive, all communities of ISO 20022 users are invited to consider using always the most recent version of the message definitions to ensure worldwide coherence of the versions in use and thereby avoid that users participating in several communities have to maintain several versions in parallel. ISO 20022 uses a yearly maintenance process. New versions of message definitions are usually made available in the spring whenever there is a need to update them to address change requests submitted by the users.

The Full Catalogue provides access to all current versions of ISO 20022 message definitions sorted in alphabetical order of the business areas and message IDs. The following documentation is provided:

  • a Message Definition Report (MDR) and, when necessary, a Message Usage Guide (MUG) fully describing each message set
  • the schema of each message definition  
  • examples of message instances, when provided by the submitting organisation
  • the Business Application Header (BAH) documentation.

The Business Domain Catalogues provide access to the current versions of the ISO 20022 message sets of each of the five business domains. The following documentation is provided: 

  • a Message Definition Report (MDR) and, when necessary, a Message Usage Guide (MUG) fully describing each message set
  • the schema of each message definition  
  • examples of message instances, when provided by the submitting organisation
  • the Message Transport Mode recommended by the submitting organisation for each message set.

The e-Repository includes all current and previous versions of ISO 20022 message definitions in a processable EMF format.