If the invoice has a Discount % and a Discount Days which are both non-zero, the Discount Amount will be calculated automatically and will be based on the payable Amount and the Discount %.

 

 Discount Amount = Payable Amount * Discount Percent

 

You may override this amount and put in any amount less than the purchase amount, including zero. If the Discount Amount is equal to the system calculated amount, then applying the payable will generate the discount confirmation window below, which will allow you to recalculate the discount on an amount which is less than the purchase amount.

 

 Discount Amount = (Payable Amount - Balance Reduction) * Discount Percent

 

 

This dialog allows you to enter a Balance Reduction Amount. In this example, the invoice amount of 125.75 has reduced by 25.00, so the discount will be calculated on the remaining 100.75. Click the "OK" button will close the balance reduction dialog box.

 

You will be warned if you close the dialog box without entering a reduction amount. This will allow you to re-enter a reduction amount. Click the "No" button to re-open the balance reduction dialog box, or hit the "Yes" button to continue with the saving of the invoice.