A Peppol Access Point is an organization that enables companies and public administrations to connect with the international Peppol network. This connection allows them to securely and reliably exchange electronic invoices.
The Peppol network can be compared to a telephone network.
In the Peppol network:
- the phone carriers are the Peppol Access Points
- the phone numbers are the Peppol IDs
- the phone conversations are by default exchanged as UBL messages which must be understood by all carriers, however, you can exchange other types of messages if both parties support them.
- the public switch network (PSTN) used to interconnect the phone carriers is based on the AS4 standard
- the phone book is the Peppol Directory
- the phone registry used by the carriers to route the traffic is the Service Metadata Locator (SML)
- the users of the network are Peppol participants.
So, the role of the Peppol Access Point is to provide to Peppol participants access to the Peppol network to send and/or receive messages. The principles that they must abide by are managed by the OpenPeppol association that delegates the governance to Peppol authorities. There is usually one Peppol authority per country.
Apart from the connectivity aspect, the Peppol Access Points must also check the validity of the messages sent over the network.