How are invoices numbered?

Numbering is automatic — you never have to set up or manage a sequence yourself.

Invoices, credit notes, and debit notes are numbered separately, each with its own prefix, the current year, and a running count:

• Invoices: INV, for example INV-2026-000001
• Credit notes: CN, for example CN-2026-000001
• Debit notes: DN, for example DN-2026-000001

Every number is unique inside your company, so no two documents can ever share one.

You'll find invoice creation under Finance > Sales in Nassima, where all your invoices are listed and created. A number like this is assigned automatically the moment you save — there's currently no way to set your own custom number instead, even if you'd want one to match your accounting or ERP records.

The numbering stays consistent and never collides, so it's one less thing you ever have to manage yourself.