Suppliers invoicing the Deutsche Bahn must use the XRechnung e-invoicing standard (as of 27th November 2020).
The Federal Government in Germany funds the Deutsche Bahn. And the Federal Government now obligates that all its clients invoice them electronically.
Those requirements extend to affiliate companies of the Federal Government, including Deutsche Bahn.
And this is affecting many businesses the world over! After all, the Deutsche Bahn is one of the world’s biggest transport companies.