Change how documents are numbered
Last updated · InvoiceStamp 1.1.0 for iPhone and Android
Each document type has its own numbering: invoices start at INV-0001, quotations at QUO-0001 and sale orders at SO-0001. To change it, go to Profile → Document Numbering, or tap the pencil next to the number in the editor. Set a Prefix, the Next #, a Suffix and the Number Length, then tap Save.
How do I change the numbering?
Tap Profile → Document Numbering (Prefix & counter for each type). In the editor, the pencil next to Number opens the same screen.
Choose the type at the top: Quotation, Sale Order or Invoice.
Change any of the four settings. The line Next invoice will be number: shows the result as you type.
Tap Save. It becomes available once you've changed something.

What does each setting do?
| Setting | What it does | Default | Example |
|---|---|---|---|
| Prefix | Text before the number, up to 32 characters | INV-, QUO-, SO- | 2026- gives 2026-0001 |
| Next # | The number the next document gets, from 1 to 1,000,000,000 | 1 | 120 gives INV-0120 |
| Suffix | Text after the number, up to 32 characters | none | -EU gives INV-0001-EU |
| Number Length | How many digits, padded with zeros: 3 to 8 | 4 digits | 6 digits gives INV-000001 |
Numbers go up by one with each document you save.
Moving from another app?
Set Next # to the number after your last invoice there, so your numbering carries on without a gap or a repeat.
Which documents does a change affect?
- New documents of that type get the new numbering.
- A new document you haven't saved yet of the same type is renumbered straight away.
- Saved documents keep their numbers. When the document in the editor is already saved, the screen reminds you: "This invoice is already saved as INV-0001. Your edits will only apply to the next invoice."
Why is a number skipped?
Every document number is unique in your account, and a number is never given out twice:
- A deleted document's number isn't reused. If you delete INV-0007, the next invoice is still INV-0008. Gaps in your numbering are normal.
- A number that's taken is skipped. If Next # points at a number you've already used, InvoiceStamp moves on to the next free one when you save.
The number shown on a new document is a preview: the final number is given when you save, so it can move on if you saved another document of the same type in the meantime, on another device for example.
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