Module: Facturas

An invoice (factura) is the receipt generated every time you charge one or more orders. It has a unique business sequence number and is immutable — it is never modified once issued.

Two different "invoices"

• The business's invoices (this page) — receipts your business issues to its customers.
• Nexta's invoices (in Facturación y plan) — the ones Nexta issues to you for the monthly subscription.

What an invoice stores

When you charge, the invoice captures a snapshot of:

• Number (the business's own sequence number).
• Business data (name, logo, NIT, address, phone).
• Items with quantity, description, unit price, size and chosen extras.
• Table (or "Mostrador").
• Subtotal, discount, coupon used, tip, total.
• Payment method.
• Date and time.
• Who charged (team member).
• Cash session it belongs to.

Immutability

Invoices are immutable. This means:

• They aren't edited after being created.
• If you later change the product's name or price, the invoice keeps the name and price it had when it was charged.
• If you later delete a product, the invoice still shows that product.
• If you later edit the coupon, the invoice keeps the original discount.

Why immutable

It's an accounting requirement. If we could modify an invoice after it was issued, we would lose traceability and trust in the financial reports. If you need to correct a charge, you have to void the order and create a new one.

One invoice per payment

Each payment operation generates a single invoice:

• If you charge a single order in the POS → 1 invoice for that order.
• If you charge a table with 3 open orders → 1 invoice that groups the 3 orders.

Unique sequence number per business

The number is sequential within your business: 0001, 0002, 0003…. Each business has its own independent counter.

Printing

When you charge, the ticket is shown ready to print in 80 mm thermal format. Old invoices can be reprinted from the Documentos tab in the POS.

Connection with other modules

• Pedidos — paying orders generates invoices.
• Caja — each invoice is tied to the active cash session.

Who uses this module

Role	What they can do
Dueño	View, download, reprint. Access to the full history.
Administrador	Same as Dueño.
Trabajador	View invoices from the current session. Reprint.
Cliente	Has no access to invoices from the public menu.

Related pages

• Charging at the POS — the flow that generates the invoice.
• Configuración — the business data that appears on the invoice.