Invoicing

Issue a delivery note (Lieferschein)

Create a delivery note to record what was physically delivered to a site. It carries line items and quantities, a PDF, and a document number. It carries no payment obligation.

Issue and manage a full invoice

Take an invoice from a fresh draft through Issue, send it to the customer, track payment, and recover with a void or credit note when something needs to change.

Write a letter (free-text supporting document)

Send a formal text-only document with its own number and PDF, straight from the Invoicing module.

Issue an offer confirmation

Confirm an accepted offer with a formal supporting document that you can later convert into an invoice.

Issue an order confirmation (Auftragsbestätigung)

After the customer accepts the offer, generate an **Offer Confirmation**: the supporting document that confirms the deal, precedes invoicing, and goes to the customer for their records.

Invoicing Overview

The big picture: what Reonic's invoicing module does, when to use it instead of an external accounting tool, and how payment, accounting, and statutory e-invoicing fit together.

Create and manage partial invoices

Bill a project in stages (advance payment, progress milestones, component-by-component) without re-keying the offer. Partials roll up against a single Final Invoice so the customer is never billed twice for the same line item.

Issue a purchase order (Bestellung)

Create a purchase order to request products or services, typically from your own supplier. It carries line items and quantities, produces a PDF, and gets its own document number, with no payment to track.

Reimburse a customer (refunds and credit notes)

When a customer is due money back (paid in full but installation scope shrank, equipment returned, a discount applied after the fact), issue a credit note to document the reimbursement and wire the money back separately.