How can I use rebates-additions when invoicing ?

If you have defined rebates-additions records in the file of the same name accessible via the Others menu and you have assigned the same customer group and/or item group codes in the Addresses and Items-Services records, when entering debit documents (quotations, order confirmations, invoices and credit notes), the program automatically checks whether the called customer and/or item is subject to a rebate-addition. If this is the case, the program automatically applies the specified discount or markup.