Field help (DEPSIH) 

This information is entered in the quote, is initialized by the discount code of the bill-to customer and can still be changed. It makes it possible to determine a series of early discount or late charge rates (up to 12) according to the early or late payment relating to the due date (see Discounts Documentation).
From this field, it is possible to directly enter a discount code whose existence is controlled in the corresponding table or to use the contextual button to:

Only a discount code consistent with the legislation and company group of the document site can be entered.
SEEREFERTTOThe general principles linked to the multi-legislation setup are detailed here.

The amount of the discountable base is displayed on the "Valuation" tab.