This function is enabled if the use GST option (either Use Item Tax Code or Default Tax Code) in Backend is enabled.
To enable the use GST function in backend, go to Point of Sale > Maintenance > POS Option Maintenance > Edit > Document Control > check on Use Goods & service Tax checkbox > select Default Tax Code > OK .
This function allows for user to modify the Tax Code associated with the item row highlighted in the data grid.
User can select the appropriate tax code which associated with the item row highlighted after this button is pressed.
