If you would like to give a discount on the item level within the folio, you need to click on the menu next to the item (group or individual) and enter the discount, in percentage or nominal.

To apply a discount to an entire folio, go to "Actions" and select "Folio discount".

You enter the type of discount you are giving and it is applied to all items on the folio.

The balance is automatically reduced by the entered amount, and the discount you applied will be visible when the invoice is printed.