Bundle · One-file app · Paid product

eInvoice Viewer Bundle Mustang Outbound: the viewer for outgoing invoices with Mustang.

The bundle for outgoing invoices, plus validation with the Mustang validator. In a single HTML file that you open in your browser, without installation and without a server.

Bundles are available as one-file apps. The tools inside are also available individually as WordPress plugins and as apps.


What is inside the bundle

  • eInvoice Viewer for PEPPOL & EN16931

    Shows every e-invoice as a readable document: XRechnung, ZUGFeRD and Factur-X, Peppol BIS, in CII and UBL. Learn more

  • Identifier Check

    Checks identifiers such as VAT ID, IBAN, GLN and Leitweg-ID for structure and check digit and marks errors at the field. Learn more

  • Invoice Monitor

    Keeps incoming and outgoing invoices in lists with due dates; SEPA file and package for your tax adviser. Learn more

  • Technical Details

    Shows cardinality, data type, code list, validation rules and XML path for every field. Learn more

  • Visualizer

    Shows the invoice as a print-ready document in several layouts. Learn more

  • eInvoice Validator for VAMPIRE JS

    Validates the invoice against the official rules with VAMPIRE JS, right in the browser. Learn more

  • eInvoice Validation Explorer for VAMPIRE

    Places every message of the validation report at the field of the invoice it concerns. Learn more

  • eInvoice Validator for Mustang

    Validates with the Mustang validator and shows the report in plain language. Learn more

  • eInvoice Validation Explorer for Mustang

    Explains every message of the Mustang report and shows it at the field of the invoice. Learn more

  • Validator Bridge

    A small program on your computer that makes the KoSIT validator or Mustang installed there reachable for the one-file app.


Who the bundle is for

For businesses that want to check their own e-invoices before sending them and keep track of open invoices, without installing anything.

Validation with the Mustang validator runs through the Validator Bridge on your computer. You install the validator itself there; the bridge makes it reachable for the one-file app.


How the bundle reaches you

In the shop you get a ZIP with the one-file app of the viewer and the add-on files of the extensions. You unpack it into a folder and open the HTML file with a double click. The add-on files sit next to it, and the viewer loads them at start.

You can pass the one-file app on by e-mail, put it on a USB stick or copy it to a network drive. If you need roles, daily limits and storage, use the tools individually as WordPress plugins.

This bundle is new; the demo follows shortly.


Questions about the bundle?

Write to us if you would like to know which bundle fits your workflow.