As previously announced, we are pleased to have launched a connection to the Polish National e-Invoice System (KSeF, Krajowy System e-Faktur). At this stage of implementation, the integration relies on a token generated in the KSeF Taxpayer Application (Aplikacja Podatnika KSeF), which must be entered in Konfeo.
Connecting to KSeF
The system offers two connection methods:
- Entering a token in the Organization’s profile automatically connects all ongoing and new events using invoicing.
- Entering a token in the Event Settings (KSeF tab) connects only that single event.
This second option is convenient for organizers using a single account to manage registration and invoicing for different business entities. In this case, tokens from different companies can be linked to separate events. In other words, entering a token in the Event settings overrides the token entered in the Organization’s profile.
Invoicing
An invoice issued in Konfeo (manually or automatically) triggers a document issuance command in KSeF. Once the invoice is successfully issued, its visualization (in the standard Konfeo template) is sent to the attendee, and the relevant information appears in the Invoices tab.
Clicking the link with the KSeF-assigned number lets you view the invoice information in the government system.
Important for Polish organizers: as of April 1, 2026, PDF visualizations of invoices attached to emails are not considered accounting documents. Only structured documents issued and shared via the KSeF are considered invoices.