When we talk about e-invoicing flows, we often use corner models to show how documents move between different parties. The idea is the same everywhere: an invoice or another business document needs to be sent from the sender to the receiver.<\/p>\n\n\n\n
The setup can vary from country to country. Some national systems use the Peppol flow as it is, while others adapt it and integrate Peppol into their own local model.<\/p>\n\n\n\n
In this blog, we focus on Peppol, which is used in many countries to make cross-border and domestic trade easier. This article explains the Peppol network, focusing on the two main flows you might come across when dealing with e-invoicing: the Peppol 4-Corner Model and the Peppol 5-Corner Model.<\/p>\n\n\n\n
The 4-Corner Model is essentially the basic Peppol flow. It is the standard approach in many countries and is designed to make sure business documents are exchanged securely and reliably. In this setup, the document is sent from one Peppol Access Point to another, with each party connected to their own certified provider in the Peppol network. <\/p>\n\n\n\n
Because both the sender and receiver can choose their own Access Point, the model provides flexibility while still ensuring compatibility across the network. In the table below, you can see more details about what happens at each corner. <\/p>\n\n\n\n