What are invoice numbers?
Let’s start this article by asking the following question: “What is an invoice number”? Basically, an invoice number is a unique identifier assigned to invoices to organise them. At the top of an invoice document, you’ll usually spot an invoice number meaning it can be easily noted by both the recipient of the invoice and the business providing it. Invoice numbers allow business owners to organise, categorise, and systematise payment processing in a clear and intuitive way.