
The AS4 protocol: how Peppol transports your documents
The AS4 protocol explained: how Peppol moves your invoices between access points, which OASIS standards it builds on and what it guarantees on every send.
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The AS4 protocol explained: how Peppol moves your invoices between access points, which OASIS standards it builds on and what it guarantees on every send.

The Peppol Authority in Belgium: what a Peppol Authority is, the role of FPS BOSA, its link with OpenPeppol, and what it changes for your invoices.

Beyond the invoice, Peppol documents cover the order, the catalogue and the despatch advice. What they do, how they connect, and what is actually mandatory.

The Peppol Directory explained: what this public directory is for, how to check whether a business is connected to Peppol, and what an absence really means.

The Peppol access point explained: its real role on the network, its place in the four-corner model, your Belgian identifier and how you connect through it.

Sending an invoice via Peppol in practice: the prerequisites, what happens on the network, delivery confirmation and how YouInv handles it end to end.

The Peppol four-corner model decoded: the role of each corner, how an invoice finds its recipient and what this design changes for you.

Connecting to Peppol: the four-corner model, what a Peppol access point does, your Belgian participant ID, and the test send that confirms the connection.