All screenshots in the article were taken in the Dutch version of Yuki.

If the Payment discount function is activated, you will see the new Payment discount field at the bottom of your input screen when you enter the data of the purchase invoice.

The payment discount can be entered as a percentage or an amount. When you enter one of the two, the other field will be calculated automatically. 

The date you entered in the Pay before field is the date until which Yuki may automatically apply the payment discount.

After processing the document, Yuki will save this discount percentage in the supplier's default values so that the discount is automatically included when posting the next purchase invoice.