On Peppol, invoices find you through your registered identifier — in Belgium, typically your KBO/BCE company number. If you're not registered on the network, or your customers have wrong numbers on file, invoices can't reach you. Registration usually happens through your accounting software or service provider.
What to do
1
Ask your software provider to confirm your Peppol registration and identifier
2
Verify the company numbers of your regular B2B customers and suppliers in your records
3
Tell key trading partners your Peppol ID so their systems route invoices correctly
Risk if ignored: Unreachable on Peppol = undeliverable invoices and compliance exposure on both sides.
Sources: Qvalia — Belgium 2026 superguide, connecting to Peppol · Storecove — preparing for Belgium's mandate
✓ Verified against sources on 2026-08-09 · updated when the regulation changes