The Invoice module allows you to personalize your billing document numbers. You can quickly set what format of invoice, adjustment or proforma numbers will suit you.
1. Open the side menu, Invoices tab [1] -> Open [2].
2. In the Invoices module, select Settings [3] -> Account Settings [4].
3. Open the Documents numbering tab [5].
4. Select Default invoice numbering format [6] using the --select from examples-- [7] field. Repeat this step for:
- Default invoice numbering format Correction,
- Default numbering format for Proforma invoices.
5. Save [8] the changes.