e-invoices

The application supports:

UBL Peppol XML: you can download the XML embedded with the PDF, or as a standalone XML file. This feature is enabled by default and can be toggled in the Settings page.
XRechnung (UBL 2.1) XML: you can download the standalone XML file. This feature is enabled by default and can be toggled in the Settings page.

To generate valid UBL/Peppol XML or XRechnung (UBL 2.1) XML, additional fields are available on Businesses and Clients. These fields must be properly filled to produce compliant invoices.

E-Invoice

UBL XML / XRechnung XML may fail validation if data is misconfigured

The application only checks that required fields are present. It does not guarantee that all values conform to UBL/Peppol or XRechnung (UBL 2.1) standards.

For example:

Tax names must match supported values (e.g., VAT). Arbitrary text will cause validation errors.
Currency codes must be standard ISO codes (e.g., EUR, USD). Random text will fail validation.

Export behavior:

A regular PDF can be exported at any time.
The XML file and the PDF with embedded XML reflect only saved data.
You cannot export XML while creating a new invoice until it has been saved.
When editing an invoice, make sure to save changes before exporting.

Use a UBL Peppol XML validator (e.g., https://peppolvalidator.com/) to ensure compliance before sending. Use a XRechnung (UBL 2.1) XML validator (e.g., https://validator.invoice-portal.de/) to ensure compliance before sending.