You can enter credit amounts on invoice detail lines for returned items or to reverse miscellaneous charges, providing the order is incomplete.
To enter a credit for a returned item, enter a negative quantity in the Quantity Invoiced field before posting an invoice.
Order Entry calculates the extended price of the item as a negative amount.
Credit amounts entered on invoices are included with other invoice data on the Invoice List. They do not appear on the Credit Note List.
Note: When you post the invoice, the quantities on hand in Inventory Control are adjusted.
The costs of the returned items are adjusted when you run Day End Processing in Inventory Control.
Although you can enter a detail line with a negative quantity shipped, Order Entry does not allow you to post an order or invoice with a negative total.