Definition
Peppol (Pan-European Public Procurement OnLine) is a European four-corner network for exchanging structured business documents - invoices, orders, reminders - between businesses and public authorities. The network connects certified Access Points operated by different providers, so a sender only needs one connection to reach every recipient in the network, regardless of which Access Point the recipient uses. Transport runs over AS4Open OASIS standard for secure message exchange over HTTP - the transport protocol required by Peppol, increasingly seen in European power-market messaging too.. Norway was an early adopter and requires e-invoicing via the network for trade with the public sector (the e-invoicing regulation). Outside the public sector, Peppol is increasingly used between private businesses too, as a standardised replacement for point-to-point EDIElectronic Data Interchange - standardised electronic exchange of business documents between systems. agreements.