Invoice Numbering

FlowForth uses sequential numbering for invoices and credit notes. Numbers are automatically assigned when you send an invoice or credit note, ensuring a continuous, audit-compliant sequence.

How It Works

• When you send an invoice, the next available number is assigned automatically.
• Invoice numbers follow the format INV-00001, INV-00002, etc. (zero-padded to 5 digits).
• Credit note numbers follow the format CN-00001, CN-00002, etc.
• Numbers auto-increment — each sent invoice gets the next number in the sequence.
• Numbers are unique per organization.

tip

Invoice numbers are only assigned when an invoice is sent, not when it is created as a draft. This prevents gaps in the numbering sequence from deleted drafts.

Configuring the Starting Number

If you're migrating from another invoicing system or need to align with your existing numbering, you can set the next number to be assigned.

Step-by-Step

1. Navigate to Settings > Integrations > E-Invoicing / Peppol.
2. In the Invoice Numbering section, you'll see:
   • Next Invoice Number — The number that will be assigned to the next sent invoice.
   • Next Credit Note Number — The number that will be assigned to the next sent credit note.
3. Update the values as needed. A live preview shows the formatted number (e.g., INV-00100).
4. Click Save.

Invoice numbering settings with preview

Before You Begin

You need the Organization Admin role to change numbering settings.

tip

Only change the starting number before sending your first invoice, or if you need to continue from a specific number after migrating. Changing it after invoices have been sent could create gaps or confusion in your records.

What's Next?

• Creating an Invoice — Generate and send your first invoice.
• Credit Notes — Learn about credit note numbering.
• Invoicing Overview — Return to the invoicing overview.