Please add the functionality to have a "File creation number" or "unique file identifier" number that can be included on the header line in a SafePay file in Dynamics GP. It should increment over time. 1,2,3, etc. (This would mirror the same functionality that EFT has, (In EFT file format, map to DATA FIELD, table: Checkbook electronic funds transfer master, field: 'EFT Next file number'.) Safepay needs the same functionality to have a unique file identifier, as it is required by many banks.