The eInvoicing Digital Building Block supports public and private entities established in the EU, as well as in European Economic Area (EEA) countries participating in the programme to comply with EN, the European Standard on electronic invoicing adopted by the European Commission on 17 October 2017.

Electronic invoicing is the exchange of an electronic invoice document between a supplier and a buyer. An electronic invoice (eInvoice) is an invoice that has been issued, transmitted and received in a structured data format which allows for its automatic and electronic processing, as defined in Directive 2014/55/EU.

The digital eInvoicing Building block aims at promoting the uptake and accelerating the use of eInvoicing in respect of the European standard, amongs both public and private entities established in the EU, as well as in participating EEA countries.

It serves to support public administrations in complying with EU eInvoicing legislation and helps service and solution providers adapt their services accordingly. Emphasing B2G invoicing. However eInvoicing and the European standard can also be used to enable the Government-to-Government (G2G) and Business-to-Business (B2B) communication