You are able to make a full credit of any invoice.
How to credit an invoice
Go to Work areas - Sales - Invoices and open an invoice you wish to credit.
Click on the Credit
button and then click OK.
Note! Before the synchronisation process is finished the unissued
credit note will have a temporarily status until it gets its unissued
credit note number.
You can now Edit the unissued creditnote if you wish to change the content.
Click Invoice to create the final credit note.
Once having the credit note number you can choose to view and print the credit note by clicking the Preview PDF button.
You have now created a credit note from an
invoice.
Read more about:
Working with Quotations and Sales Orders
Quotation/Sales Order/Invoice/Credit note