Fill database interface with your data

The interfaces described in the chapter Tables ZUGFeRD 2.3.x & XInvoice 2.x/3.x must be filled with your data before a ZUGFeRD or xRechnung file can be created. When filling these tables, it may be necessary to use code lists whose description and documentation are not part of this product.

You can find this information on the official websites of the respective institutions at
ZUGFeRD 2.3.2 english

https://xeinkauf.de/xrechnung/versionen-und-bundles/