SWIFT ISO 15022 - Qualifier COVE Financial acronyms The entire acronym collection of this site is now also available offline with this new app for iPhone and iPad. Meaning Effective Modification Date/Time Usages Message Type Tag Name of the tag MT501 98a ( field number 15 ) Date/Time MT501 98a ( field number 15 ) Date/Time MT501 98a ( field number 15 ) Date/Time MT501 98a ( field number 15 ) Date/Time