You can go through Peppol also send the order as a structured annex to the invoice?
Short answer
Not in the sense that the order was placed in the invoice as its structured annex. Network Peppol actually works as a digital mail for a number of types of business documents ♦ in addition to the invoice also for the order, order confirmation or delivery note, but each one is transferred as a separate, own structured message with its own specification, not as part of Annexes inserted directly into XML invoices.
Order, invoice, delivery note
Each type of document has its own Peppol specification.
File Format Only
CSV, PDF, PNG, JPEG, XLSX or ODS, not structured document.
Order reference
Not putting an order in the invoice, but a reference to her number.
More documents vs. one Annex
The ordering process and the invoicing annex serve different purposes.
Conclusion
Peppol transmits orders also other business documents but as separate structured reports; the Annex directly on the invoice remains limited to simple file formats and is linked to the order only by reference in the field BT-13.
Sources
- EN 16931 a Peppol BIS Billing 3.0MimeCode Code and Fields BT-13, BT-125
- Open specifications for Peppol for individual types of business documents
Not legal advice. Machine-translated answer, not yet manually reviewed. For the exact wording, see the Slovak original.