There are 2 ways to set up the numbering of your invoices:
No setup needed, you simply add the invoice number manually as you create the invoice.
- Go to your Settings
- Create online > Autonumbering
- Enable Autonumbering
- Pick a prefix, a starting and ending date (e.g. Prefix: 2020, starting date: 01/01/2020, ending date: 31/12/2020)
- Add a row to create a new numbering sequence
- Pick the template and the starting value
Important: when autonumbering is enabled, the order in which sales invoices are sent to customers determines the numbering order of these invoices. The creation date of the draft invoice only influences the numbering when sending multiple invoices at once.