Good afternoon. To do this, you should start with at least an understanding of the billing processes and know what an invoice is. Every time you ship a product or provide a service to your customer, you must inform him about it using an accounting document. In which your data and customer data, products and services, as well as the amount to be paid, are registered. Saldoinvice
online invoices will help you create them online and customize them for each client. And, accordingly, quickly get some money.