warningEN16931
UBL-CR-678:A UBL invoice should not include the TaxCategory/ID schemeID
This UBL element should not be present in an EN16931 invoice. It is allowed in full UBL 2.1 but not in the EN16931 subset.
We can fix this automatically
AUTO-FIX1. Identify the non-EN16931 element. 2. Remove from invoice or move data to EN16931-compliant location.
No manual changes needed
Upload and Fix NowWhy This Error Matters
Invoice will be rejected by EN16931 validators. These conformance rules prohibit UBL attributes and elements not in the EN16931 e-invoicing profile. Remove the disallowed attribute or restructure the element.
Common Causes
- TaxCategory ID contains schemeID attribute
- cbc:ID/@schemeID in tax category not permitted
- Scheme identifier on VAT category not in EN16931
- Only plain text tax category code allowed
- ERP exports scheme attribute on tax category ID
Frequently Asked Questions
This UBL element should not be present in an EN16931 invoice. It is allowed in full UBL 2.1 but not in the EN16931 subset.
This UBL element should not be present in an EN16931 invoice. It is allowed in full UBL 2.1 but not in the EN16931 subset. You can also use Invoice Navigator's automatic Fixer tool to correct this instantly.
UBL-CR-678 is a warning that may not always cause rejection, but it indicates a potential compliance issue that should be addressed.
Many instances of UBL-CR-678 can be automatically corrected using Invoice Navigator's Fixer tool. Upload your invoice and the tool will identify and fix common issues.
See Also
Last updated: 16 January 2026
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