What it means
The check requires languageLocaleID to be absent from /rsm:CrossIndustryInvoice. It does not check attributes on child elements or namespace declarations beginning with xmlns.
Why it matters
The languageLocaleID attribute is outside the permitted CII structure for the invoice root. Removing it does not require you to change the language of your invoice text.
How to fix it
Find the opening rsm:CrossIndustryInvoice tag and remove languageLocaleID from that tag only. Keep the xmlns declarations and the invoice content unchanged. Save or regenerate your CII file, then check it again.
Once the file is corrected, check it again for free: Validate an invoice against EN 16931
Or fix the invoice in a form and download the corrected file, for 1 credit: Fix a rejected e-invoice
The rule as published
languageLocaleID should not be present Where this rule applies
| Rule set | Version |
|---|---|
| EN 16931 (CII) | 1.3.17 |
| XRechnung 3.0 (CII) | 3.0.2 |
| NLCIUS (CII) | 1.0.3.13 |
| France CTC (CII) | 1.4.0-04 |
Check your file
Drop your e-invoice to see whether CII-DT-014 still fails, and which other rules do.
Related rules
- CII-DT-015 Keep document links on supporting document references
- CII-DT-016 Remove StatusCode from document references
- CII-DT-017 Remove CopyIndicator from document references
- CII-DT-018 Use TypeCode only on additional references
- CII-DT-019 Remove GlobalID from document references
- CII-DT-020 Remove RevisionID from document references