Field help (SFINUMTDA)

This field makes it possible to link an invoicing element to the early discount code, in order to decrease the base subject to VAT, thus making it possible to apply the early discount on the VAT amount, directly on the invoice.
An invoicing element can only be entered if the indicator Discount on tax is activated. 
The early discount rate applied to the invoicing element is the negative rate which has the highest absolute value.
On the sales invoice, this invoicing element will not be displayed in the invoicing elements table (invoicing tab), nor in the invoice valuation table.
The discount calculation is carried out in the tax grid and in the invoicing element grid where it decreases the base subject to all the main taxes.

In invoice entry, this invoicing element isonly used when theDEPMGTMOD - Early discounts management modecompany parameter (TC chapter, INV group) is set to'Tax discounts' or 'Discount on tax (exempt)/Global' (for this last value: update 8.0.0 and higher).