Specific errors in QuickBooks Desktop company files can be linked to QBWin.log or QuickBooks.log files. QuickBooks Desktop logs program messages and errors into a particular file. You might often see the error message depictingQBWin.log: Verify list. Duplicate name encountered. The error ' Qbwin.Log: Verify List Duplicate Names Encountered Error ' typically occurs when using an invalid Customer ID while setting up online services like Bank Feeds. The QuickBooks log file often