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Sending & error handling
Frequently asked questions about sending & error handling.
5 questions
01Can I upload my own UBL XML?Yes, directly via the send document endpoint.02What happens after an invoice is successfully delivered?The recipient's access point has acknowledged the document; software processing follows.03What happens if the recipient is unreachable?The failure can appear in the send response or in a later delivery status update.04What 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.05What is the difference between an e-invoice and a PDF invoice?E-invoices are structured and automatically processable.