E-invoice and the National System of e-Invoices (KSeF) – How will the data flow for generating e-invoice in the enterprise work?

Main assumptions of the KSeF project

The draft act is to introduce the possibility of issuing structured invoices, that is in line with the technical guidelines of the Ministry;
The scope of data reported under the new form of invoice includes many additional elements, other than the standard invoice;
The KSeF is to structure and provide the real-time control over the invoicing process;
The structured invoice is to be one of the acceptable forms of documenting transaction in the optional period and from 2023 the only possible form.

How will the data flow for generating e-invoice in the enterprise work?