If you change the contents of this field, it will not  apply to any prepayment invoices, only to regular invoices. This is to  ensure that the program handles VAT for prepayment invoices and the corresponding  deductions in regular invoices correctly.
Če spremenite vsebino tega polja, sprememba ne bo veljala za avansne račune, ampak samo za navadne račune. Tako se zagotovi, da program pravilno obravnava DDV za avansne račune in ustrezna zmanjšanja v navadnih računih.