Key: de-zugferd-v2 Support for the German ZUGFeRD version 2.2 and upwards standard for electronic invoicing. ZUGFeRD 2.2 and Factur-X 1.0 are fully compatible and technically identical formats the use the Factur-X identifier. Currently this is just a placeholder addon as the EN16931 addon will provide all validation requirements. For more information, visit www.ferd-net.de.