What to do when you are getting some sales entry under N/A for sales by category for Sales Summary Report?

Solution: This Happens only when some of the menu items are configured without the Category.When those items are punched, in the Sales summary report- Sales by category it will reflect under N/A.
All you need to do is, Export that menu item from the respective outlet and rectify the missing category and fill it up.Import the same Menu item xls again. This was it will not give you the Sales by category under N/A.
Thank You.