KoSIT Validator 1.6.3 · XRechnung 3.0.2 configuration (2026-08-31) · EN16931 Schematron 1.3.16 · Peppol BIS Billing 3.0.21 (2026-05-20). Validation engine: KoSIT Validator (Apache-2.0) with the
XRechnung validator configuration (Apache-2.0), running the EN 16931 Schematron (EUPL-1.2) unmodified.
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