Available in Sage 50 Premium Accounting and higher.
Enter a Purchase Debit Note
                                There are different methods of creating debit notes1 You need a service plan that includes debit notes. depending on your Sage 50 Accounting product and if you have a service that plan that includes debit notes.
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 Vendors & Purchases on the navigation pane.
 - In the Tasks pane, right-click the Purchase Invoices icon and select Debit Note and then Create Debit Note from the menu.
 
 - (Optional) Enter the Date.
 - 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: vendor name and address, payment method, inventory location, project, payment terms and invoice line details (item, quantity, unit, description, tax code and account).
 - In the Quantity box, enter the quantity of additional amount of goods you ordered from the vendor.
 - 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 Process.
 
Note: If you selected an existing invoice, the Invoice Quantity and Invoice Amount fields will show the original invoice information.
With this method, you can create a free-standing debit note.
- Create a debit note. 
How?- In the Home window, click Vendors & Purchases on the navigation pane.
 - In the Tasks pane, right-click the Purchase Invoices icon and select Debit Note and then Create Debit Note from the menu.
 
 - In the Vendor box, select or enter the vendor name.
 - Select Pay Later from the Payment Method list.
 - In the Debit Note No. box, enter a number after the prefix DN.
 - (Optional) Enter the Date.
 - Enter the line details.
 - (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 Process.