Whenever you edit a quotation/an invoice, you can still access its previous versions. There are two possibilities to get an overview of the latter:
- You can open the quotation/invoice in pdf preview and click on 'Show history' at the top of the page.
- You can go to the files at the bottom right-hand corner, where you see your quotation/invoice as well. Right clicking on it also gives you the option to 'Show history'.