SWIFT ISO 15022 - Qualifier MAUP Financial acronyms The entire acronym collection of this site is now also available offline with this new app for iPhone and iPad. Meaning Preadvice Message Reference Usages Message Type Tag Name of the tag MT540 20C ( field number 9 ) Reference MT541 20C ( field number 9 ) Reference MT542 20C ( field number 9 ) Reference MT543 20C ( field number 9 ) Reference