Peppol and UBL troubleshooting guides
Start with the guide that matches your situation. These pages explain a practical investigation process while keeping business values tied to the source invoicing system.
Why Peppol invoices are rejectedUnderstand the main categories behind UBL and Peppol rejection messages.How to investigate a rejected invoiceA step-by-step workflow from rejection message to corrected source data.Validation error vs Access Point rejectionUnderstand why passing one check does not guarantee network acceptance.UBL invoice validation checklistReview identity, routing, totals, VAT and payment data before submission.Error-code libraryFind a plain-English explanation for the exact BR, BR-CO or PEPPOL-EN16931 code.
Scope: RejectFix is not the official OpenPeppol Schematron or a Peppol Access Point. Use the current validation report and your Access Point's requirements as the authoritative operational input.