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 2.12.0 was released on 20.07.2024 and supports ZUGFeRD 2.2.0, ZUGFeRD 1, Factur-X 1 as well as UN/CEFACT CII XRechnung 3.0.1.
Mustang 2.12.0
2024/20/07
Today, on July 20th, 2024, we published Mustang 2.12.0. Due to dependencies, this is the first Mustang to require at least Java 11 (previously Java 8). Fixes set profile to XRechnung if XR is imported #395 #397 Build succeeds but file is unusable on alpine/docker Fix #389: ClassCastException: ZUGFeRDExporterFromA3 ZF extended no longer requires deliverydate […]
First trainings
2024/08/07
Frankfurt, July 8th, 2024 After our first training from July 1st-3rd we have updated our training page. The second training will be conducted inhouse at a customer but the third from july 24th-26th can still be booked individually!
Mustang 2.11.0
2024/23/05
Yesterday, May 22nd 2024 we released version 2.11 of our cross platform e-invoicing library/validator/tool Mustangproject. Refactorings/Updates EN16931 validation 1.3.12 codelists v11 #357 Fonts removed #358 invoice’s getSender/getRecipient() now return tradeparty no IZUGFeRDExportableTradeParty #314 ZUGFeRDInvoiceImporter additional constructor Issues/Improvements InvoiceImporter UBL to also parse contacts and other UBL improvements (first) IBAN is now parsed into sender’s getBankDetails […]
Germany introduces mandatory B2B e-invoices 2025-2028
2024/25/03
On Friday, 2024-03-22, the german Federal Council (Bundesrat) passed the law on statutory domestic B2B e-invoicing which will ban paper and PDF invoices without Factur-X between german companies as of 2028. Background We took this as an occasion to relaunch the (inofficial) https://ZUGFeRD.org/ page, which still lists open source tools but now also features a […]
Mustangserver 1.3
2024/04/03
Today, march 24th, 2024, we released a set of changes to both our infrastructure and our Mustangserver server application. Updates to the infrastructure There are now minimum Service Level Agreements (SLAs) in our contract. In the basic configuration we only guarantee 99% availability but we can talk if you need more. We now also have […]
B2B Situation in Germany
2024/21/02
The mediation council has suggested yesterday to introduce mandatory domestic B2B e-invoicing in Germany two years later than originally anticipated, with an obligation to read as of 2025 and write as of 2026. The german parliament may confirm this compromise on 2024-02-23 and the federal council should then ratify on 22.03.2024. Update on 24.02.2024: I […]
Mustangserver 1.2
2024/31/01
Mustangserver 1.2, available since January 8th, 2024, sported minor changes, the only differences being that /combineXML now supports XRechnung 3 as output and /parse as well as /invoice2XML accordingly support email addresses of tradeparties, not only of their contacts: Already previously one could validate XRechnung 3.0. This new version has now been set as default […]
Mustang 2.10.0
2023/30/12
The new version of Mustangproject, 2.10.0, released today, December 30th 2023, adds write support for XRechnung 3.0.1, which becomes mandatory for german B2G invoices as of February 2024 (issue #343). Users will need to add email addresses for also for tradeparties themselves, not only for their contacts. Additionally two minor issues were fixed, concerning PDF/A3 […]
Mustangserver 1.1
2023/11/12
On Saturday, December 9th, 2023, during the planned maintenance window of Mustangserver we released version 1.1. This release Renames a parameter for consistency (invoice2XML’s parameter standard was renamed to format) Improves exception handling and also returns exception messages where they may have been discarded in the past The internally used header parameter Username which was […]
Mustang 2.9.0
2023/27/11
Mustangproject version 2.9.0 was released today, November 27th, 2023. New features include Previously one had to specify if the input was PDF/A-1 or PDF/A-3, now with #341 we have input PDF-A Version autodetection It can now validate XRechnung 3.0.1 #347 and it comes with the following fixes Missing closing tag in BankDetails when there’s no […]