Query The error Debug location, ID: 1284 Duplicated in the company is displayed. What should be done to avoid this? Answer On receiving this error it is suggested to do a Zero Command rewrite of data by following the steps shown: Take a backup of the available data Go to Gateway of Tally > F12: Configuration > Data Configuration and set Load Companies on Startup to No Point to Start > Run. Enter the path where tally.exe resides followed by the data path and Id Number mentioned in the error message. E.g: C:Tally.ERP9tally.exe Data 1284 Tally.ERP 9 starts from the command prompt Rewrite the data by pressing Ctrl+Alt+R.