It’s used when goods are returned because they don’t meet the description mentioned in the order/contract or the client’s expectations. The storno invoice is a separate new invoice and should follow the invoice series number in use.
Not at all – you have the freedom to choose what device suits you best. If you prefer to work from your laptop – it’s enough to register to Fairo for Web. If you’d rather have everything at hand even when you’re not near your laptop – you can download the mobile app and enjoy the flexibility.