SWIFT ISO 15022 - Qualifier APER Financial acronyms The entire acronym collection of this site is now also available offline with this new app for iPhone and iPad. Meaning Bargain Date/Time Usages Message Type Tag Name of the tag MT566 98a ( field number 89 ) Date/Time MT566 98a ( field number 89 ) Date/Time MT566 98a ( field number 89 ) Date/Time MT566 98a ( field number 89 ) Date/Time