Automates billing for e-commerce sales orders.

What it implements:

• Issue advance invoices (for matching).
• Send invoices to clients if this is a transfer.
• If the deposit is paid, mark the sales order as paid.
• Can generate a final invoice after the invoice is delivered or sent.
• For cash-on-delivery can generate a final invoice straight away.
• Can work with ZDD.
• If the final invoice is not issued within 14 days of payment, it will be issued automatically.
• Deletes down payment documents for canceled orders.
• Updates the generated backups if the order changes.
• Can resolve the situation if the final invoice has an amount other than the deposit (the order will change).
• It will be able to generate credits in the future.