Sending & error handling
Frequently asked questions about sending & error handling.
Can I upload my own UBL XML?
Yes, directly via the send document endpoint.
What happens after an invoice is successfully delivered?
It appears automatically in the recipient's Peppol inbox.
What happens if the recipient is unreachable?
The invoice is not delivered and you receive an error message.
What if I don't switch to Peppol by 2026 as a Belgian company?
From January 1, 2026, e-invoicing via Peppol is mandatory for all Belgian companies. Not switching can lead to fines and practical issues.
What is the difference between an e-invoice and a PDF invoice?
E-invoices are structured and automatically processable.