What is EndpointID in e-invoice?
Short answer
EndpointID is the electronic address of the seller or buyer listed in the structured XML e-invoice. It is not an email address, an Internet address, or a technical server URL. It is an identifier that together with the schemeID attribute
The provider takes over the document
The sender hands over the e-invoice to their certified delivery service provider.
The network will search for the recipient
According to the participant identifier, the recipient's registration, supported documents and his delivery point are searched.
The target provider is determined
The network metadata will determine through which provider and by what process the document is to be delivered.
The document will arrive at the addressee
Successful syntactic validation of the EndpointID does not by itself confirm recipient registration or successful delivery.
Conclusion
EndpointID is the electronic address of the seller or buyer listed in the structured e-invoice.
Act No. 222/2004 Z. z. Coll. about VAT · FAQ of the Financial Administration of the Slovak Republic from 7 July 2026 · Peppol BIS Billing 3.0
Not legal advice. Machine-translated answer, not yet manually reviewed. For the exact wording, see the Slovak original.