When all the information has been entered on the service lines, you can calculate the invoice discount for the entire service document by clicking Functions, Calculate Invoice Discount. If there is a check mark in the Calc. Inv. Discount field in the Sales & Receivables Setup window, the amount will be calculated automatically.
The discount will be apportioned over all the lines in the service document for items, resources, G/L accounts and costs where the Allow Invoice Disc. field on the service line contains YES. (This is the default setting for items and resources.)
To calculate the invoice discount, the program uses the invoice discount terms defined in the Cust. Invoice Disc. table. Click Sales, Invoice Discounts on the customer's card to see the customer invoice discounts that have been set up.
The program uses the currency code on the service document to find the invoice discount terms in the corresponding currency. If invoice discounts have not been defined for foreign currencies, the program uses the invoice discount terms in LCY set up in the Cust. Invoice Disc. table and the exchange rate as of the posting date on the service document.