SWIFT ISO 15022 - Code REFS Financial acronyms The entire acronym collection of this site is now also available offline with this new app for iPhone and iPad. Meaning Not In Good Order: Delivery/receipt was refused because physical financial instruments are not in good order. Usages Message type Field number Tag MT537 (Statement of Pending Transactions) 19 24B (Reason) MT537 (Statement of Pending Transactions) 65 24B (Reason) MT548 (Settlement Status and Processing Advice) 12 24B (Reason) MT549 (Request for Statement/Status Advice) 17 24B (Reason)