Sequence numbers

Per document type you define the number range: prefix, format and start value. Sequences are per organization and optionally per branch.

URL: /settings/sequence-numbers

Key fields

Field	Notes
Type	`order`, `quotation`, `shipment`, `invoice`, `credit_note`, `trip`
Branch	Optional — own range per branch
Prefix	E.g. `ORD-`, `Q-`, `INV-`
Format	E.g. `{prefix}{year}-{seq:5}` → `ORD-2026-00012`
Start value	First number
Reset	Yearly, monthly or never
Example	Live preview of the next number

Change prefix or format ideally only at the start of the year.
Never lower the start value below an already issued number — that causes duplicates.
For invoices, a continuous unbroken range is a legal requirement; set reset to never if in doubt.