In order to resolve this issue in Marg Software user needs to follow the below steps:

• Firstly, Go to Masters > Password & Powers > Operator's. Press 'Enter'.

• A 'Password & Authority' window will appear.

• Select the user to make changes. Press 'Enter'.

• A 'Powers' window will appear .

• Select ‘Search In All’.

• A 'Powers' window will appear ,search 'Item Modify'.

• Click on ‘Accept’.

• An 'Item Modify' window will appear.

• In ‘Bill Item Modify Y-Add+Modify N-Add C-ChangeBatch X-No' option, select ‘Y’.

• The user will now press 'ESC' key.

• Again press 'Esc' key and then click on ‘Yes’ to save the changes.

• A 'Powers Change' POP-UP will appear and then the user will press 'ESC' key.

• Press 'ESC' key and then click on ‘Yes’.

• Now for Re- login the user will press 'Ctrl + U' on the main screen. 

• A 'Change User' window will appear in which the user will enter the User ID and Password.

• A 'Change User' window will appear in which the user will press 'ESC' Key.

After following the above steps, the user can easily modify the billed item while modifying purchase bill.