There are several places where you can configure the cash discount deduction for an incoming invoice.
In Accounts Payable
Path to the starting point: Property Management - Property Accounting/Cost Entry - Vendors - Vendor List
Always deduct cash discount? in the Incoming Invoices Preferences section: Here you can set the system to deduct the cash discount for every incoming invoice for the vendor.
"Payment run before payment due date?" in the Incoming Invoices Preferences section: Here you can configure the system so that an incoming invoice for the vendor is assigned to a payment run that occurs before the payment due date. If the payment due date is adjusted to match the cash discount terms, this ensures a payment that complies with the cash discount policy.
On the Incoming Invoice
Path to the starting point: Property Management - Property Accounting/Cost Entry - Incoming Invoices - Incoming Invoices
Cash discount deduction until in the Dates section: Here you can set the date by which a payment with a cash discount deduction should be made.
Note: If you export the journal entries before the invoices are paid, the specified cash discount deduction is automatically included in the export. In this case, make sure that the invoice is actually paid with the cash discount deduction.
Cash discount rate [%] (default) in the Cash Discount section: Here you can specify the amount of the cash discount.
Note: To ensure that the cash discount amount of an incoming invoice is taken into account during posting, a corresponding G/L account must be assigned to the company in the G/L Accounts section for cash discounts.
On the invoice line item
Path to starting point: Property Management - Property Accounting/Cost Entry - Incoming Invoices - Incoming Invoices
Cash discount [%]: In the Invoice Amounts section: Here you can specify a cash discount for a single invoice line item.