SWIFT ISO 15022 - Code CDLR Financial acronyms The entire acronym collection of this site is now also available offline with this new app for iPhone and iPad. Meaning Conditional Delivery Awaiting Release: Instruction is in a hold/frozen/preadvice mode - infrastructure platform is awaiting release. 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)