Why and how
Mustang: because invoices simply need to get faster.
Mustang makes your software read, write and validate (e.g. re-calculate) machine readable invoices, orders, or delivery advices:
Machine-readable data speeds up invoice processing, makes it less error prone, is often requested by your customers and has become mandatory e.g. for german B2G invoices and
Italian (and soon French!) domestic B2B invoices (read more about electronic invoices).
Machine readability is achieved with formats such as Cross Industry Invoice (XML), XRechnung (per se not a format, details), or Factur-X/ZUGFeRD/Order-X (Cross Industry Invoice XML embedded into human readable PDF). Unlike for more complex exchange, called EDI (e.g. Peppol), those formats do not need to support additional protocols, gather extra address information or run custom servers.
What
Mustangproject is a open source Java (Jar or Maven) and .net library, command-line tool, and provides a server with a REST API. Mustangproject 2.8.0 was released on 13.09.2023 and supports ZUGFeRD 2.2.0, ZUGFeRD 1, Factur-X 1 as well as UN/CEFACT CII XRechnung 2.2.0.
Mustang 2.8.0
2023/13/09
As preparation for domestic B2B e-invoicing potentially becoming mandatory in Germany as of 2026 (background) we implemented UBL support for the InvoiceImporter. And Heavenfighter was able to help and contributed the long awaited command line option to switch off file logging, “–disable-file-logging”. Mustang version 2.8.0 was released today, on September 13th, 2023.
Quba 1.3.0
2023/29/06
Today, June 29th, 2023, we released version 1.3.0 of our e-invoice viewer Quba. Apart from the usual credit note type in invoice documents, still the only way how credit notes are done in the data formats “Cross Industry Invoice” (CII), this release now also supports the dedicated “Universal Business Language” (UBL) credit note root element […]
Mustangserver 0.8.3
2023/19/06
On Saturday, June 17th 2023, we published Mustangserver 0.8.3, Mustangprojects technology-agnostic REST API, based on Mustang 2.7.3, allowing access to three more attributes when parsing invoices.
Mustang 2.7.3
2023/16/06
Mustang 2.7.3 was released today, 2023-06-16 and adds three attributes in the parser to the invoice class (Issue 328, SpecifiedTradeProduct/SellerAssignedID, SellerOrderReferencedDocument/ram:IssuerAssignedID and BuyerOrderReferencedDocument/ram:IssuerAssignedID)
Mustangserver 0.8.2
2023/16/06
Mustangserver 0.8.2 was released on 2023-06-10, which upgraded internally to Mustang 2.7.2 and parses invoices better. Mustangserver provides technology-independent network access to the functionality of the open-source e-invoicing solution Mustang, which focusses on functionality for Factur-X/ZUGFeRD, Order-X and XRechnung.
Mustang 2.7.2
2023/09/06
Version 2.7.2 of the open-source Java e-procurement library Mustangproject now also understands BasisQuantity in the import and in classes and not only in it’s interface and allows programmatic access also on validation results and not only on the final validation XML-report.
Mustang 2.7.1
2023/25/05
Released on 2023-05-25, version 2.7.1 of the open-source Java and .net e-procurement library and tool Mustangproject fixes #317 (support conversion towards peppol #282), #313 Update CII2UBL library, #315 invoiceimporter constructor for InputStream and is now capable of extracting data into existing invoice objects
Mustangserver 0.8.1
2023/08/05
On Saturday, May 6th, along with the successful completion of our server maintenance we released a new version of Mustangserver, 0.8.1, which allows you to choose the PDF/A-Version of the PDF->PDF/A-conversion: When we tested that feature in cooperation with a customer we sometime saw significantly smaller output file sizes when exported to PDF/A-3 instead of […]
Discussion proposal mandatory german B2B-e-invoices as of 2025
2023/27/04
In a workshop on 2023-04-20./21 it was briefly mentioned, that Germany had requested permission to introduce mandatory domestic B2B-e-invoicing already in November 2022 and a “discussion proposal” mentions 2025-01-01 as possible date. One of the main purposes of the workshop was to kick off the development of Deliver-X, a hybrid delivery advice briding the gap […]
Mustang 2.7.0
2023/17/04
In todays (2023-04-17) release of version 2.7.0, Mustang has learned from our invoice viewer Quba and can now – convert Factur-X/XRechnung CII XML to HTML with different output languages (english and french is now possible, previously its was only german) – this now also works with UBL XML input (invoice, credit memo) – it also […]
