When you set an invoice as recurring, the invoice number will automatically update by appending an incremental number at the end of your original invoice number. For example:
If your original invoice number is Venn00001:
The first recurring invoice will be Venn00001-01
The second will be Venn00001-02
The third will be Venn00001-03, and so on.
For a non-recurring invoice, the number stays as Venn00001.
Tip: It’s best practice to use an invoice number format that aligns with your business records. For smoother reconciliation, ensure the details on your invoice—such as the invoice number, invoice date, due date, GST/HST number, and the name of the business or individual you’re invoicing—match what you record in your external accounting system or business records.