SWIFT ISO 15022 - Code ACCP Financial acronyms The entire acronym collection of this site is now also available offline with this new app for iPhone and iPad. Meaning Partly Accepted: A part of the collateral is accepted, a part rejected. Usages Message type Field number Tag MT507 (Collateral Status and Processing Advice) 13 25D (Status) MT549 (Request for Statement/Status Advice) 16 25D (Status)