With the new quoting system update, users are asking if they can still add a fixed discount.
Yes, you can still add a fixed discount in the quote or invoice by adding it as a negative product with a negative value. It was designed this way so we are in line with Xero and QuickBooks as they do not support fixed discounts. Check the screenshots below as a reference.
Note: Make sure to choose the same tax option for the negative line item/product in your quote or invoice.