UBL Order validator

Know what passed

• XML syntax, supplied XSD, independent business preflight, plausibility and supplied-rule results are separate. Without an authorised complete package, XSD is not executed.
• Own checks: positive quantities, unit/base-unit consistency, nonnegative prices, exact rounded line arithmetic including allowances/charges, line counts and comparable monetary totals. Missing or unsupported operands are visibly skipped.
• Order/party/document references, duplicate line IDs, currency shape and amount-currency agreement, real issue date and chosen ProfileID/CustomizationID. External code-list membership and actual party registration are not checked.
• Order only 3.3 and Ordering 3.3 are different processes using the Order transaction. Matching IDs is only a partial preflight. Unknown/custom profiles never receive complete green approval.

No Peppol certification, access point, network sending, full BIS validity, commercial correctness or general national order mandate is claimed. Generic UBL checking needs no Peppol membership. Network integration is a separate decision.

Sources and reproducible scope

OASIS UBL 2.1 · Official Order XSD · Peppol Order only 3.3 · Peppol Ordering 3.3 · OpenPeppol repository root. Rechecked 6 November 2026. OASIS copying/implementation permissions require notices and unchanged original schemas. Full-chain artifact rights are separate; ETSI import rights remain open here. The BIS document restriction is not assumed to cover every repository artifact, but no root LICENSE or specific rule redistribution permission was established. No official full pack is published.

Artifact / engine notices · Independent passing rule-only sample · XSD-error fixture · Additional-rule error · Known outcomes and XML locations · Independent local assertion demo.

Examples are fictional and independently written. The XSD-error outcome is demonstrated with our own test subset, not an official OASIS package; no official XSD-valid sample is asserted.