A workaround to clear it out would be to just load a file with headers. This will clear out the old file and show a blank file when they click the ""Last Source File Processed"" button.
Both the log file and the last loaded source file are stored in the application database table titled ""StageArchivesInformation"". Both the log file and source file are stored in one record in this table for a given workflow (WF Key), scenario (scenario key), and time (time key). They could run a query off this table and delete the source and log file remnants if they'd like!
