Creating and Editing Invoices
2026-05-24Invoice creation, editing, and related workflows in Haiku.lt. Each topic below has its own detailed guide.
- Invoice series and numbering — how series names work and how Haiku.lt keeps numbering sequential.
- Invoice fields reference — every field on the new-invoice form explained.
- Editing and locking invoices — making changes, marking paid, locking, and when to delete.
- Proforma invoices — when to use them and how they differ from regular invoices.
- Credit invoices — issuing refunds without deleting the original invoice.
- Due dates and payment terms — payment terms, due dates, and overdue tracking.