SWIFT ISO 15022 - Code FXPRTY2 Financial acronyms The entire acronym collection of this site is now also available offline with this new app for iPhone and iPad. Meaning FX Parties 2 Usages Message type Field number Tag MT307 (Advice/Instruction of a Third Party FX Deal) 16 16R (Start of Block) MT307 (Advice/Instruction of a Third Party FX Deal) 19 16S (End of Block)