In order to be able to receive electronic invoices, you will need a Peppol access point (in accordance with the AS4 profile). There are already off-the-shelf products (some of them open source) which only need to be installed and configured. For further specifications of the AS4 profile, please refer to the Peppol AS4-profile page.

A list of compliant products is available here: Connecting Europe Facility (CEF) Digital