Available in Sage 50 Premium Accounting and higher.
Enter a Sales Debit Note
                                            You can use debit notes1 in the following situations:
- Your customer requests extra inventory, which increases the amount of the existing invoice.
 - An existing invoice, which you fulfilled, was incorrectly calculated.
 
To enter a debit note from an existing invoice  (Sage 50 Premium Accounting) 
                                                
                                                    
                                            
                                            With this method, you can create a debit note from an existing invoice to retrieve some invoice details.
- Create a debit note. How?
- In the Home window, click Customers & Sales on the navigation pane.
 - In the Tasks pane, right-click the Sales Invoices icon and select Debit Note and then Create Debit Note from the menu.
 
 - In the Invoice No. box, enter an invoice number or use the finder to search for the invoice. Sage 50 will auto fill the debit note with the following invoice details: customer name and address, payment method, salesperson, inventory location, project, shipper name, payment terms and invoice line details (item, quantity, unit, description, tax code and account).
 - (Optional) Enter the Date.
 - (Optional) In the Quantity box, enter the quantity of additional amount of goods being shipped.
 - (Optional) In the Amount box, enter the upward price adjustment.
 - (Optional) Add an amount in the Freight field.
 - (Optional) In the Comment box, describe the reason for the debit note.
 - Click either Process or Print & Process.
 
Note: If you selected an existing invoice, the Invoice Quantity and Invoice Amount fields will show the original invoice information.
To enter a debit note from scratch  (Sage 50 Premium Accounting) 
                                                
                                                    
                                            
                                        With this method, you can create a free-standing debit note.
- Create a debit note. How?
- In the Home window, click Customers & Sales on the navigation pane.
 - In the Tasks pane, right-click the Sales Invoices icon and select Debit Note and then Create Debit Note from the menu.
 
 - In the Customer box, select or enter the customer name.
 - Select the Payment Method.
 - In the Debit Note No. box, enter a number after the prefix DN.
 - (Optional) Enter the Date.
 - Select items from 
 the list 
 in the Item Number 
 column. - (Optional) Add an amount in the Freight field.
 - (Optional) Enter or clear the Early Payment Terms.
 - (Optional) In the Comment box, describe the reason for the debit note.
 - Click either Process or Print & Process.