Catalogue of messages 

The catalogue of messages gives access to the latest version of approved ISO 20022 message definitions. Previous versions remain available in the ISO 20022 Message Archive.

The Full Catalogue provides access to all 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 XML schema of each message definition  
• business examples of XML instances, when provided by the submitting organisation
• message definition variants, as defined by communities of users
• the Business Application Header (BAH) documentation.

The Business Domain Catalogues provide access to 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 XML schema of each message definition  
• business examples of XML instances, when provided by the submitting organisation
• a zip file containing activity diagrams (for the business flow) and sequence diagrams (for the scenarios).

Message models are available in a processable UML 2 format (XMI 2 or Rational Software Modeler 7.5 format) upon request. Please contact the Registration Authority and specify which business area or message set you are interested in and the desired format (XMI or RSM).