What it means
For each invoice line (BG-25), the rule checks that ram:DesignatedProductClassification/ram:SubClassCode is absent from the product details in ram:SpecifiedTradeProduct (BG-31). It does not prohibit the classification code itself (BT-158).
Why it matters
The EN 16931 CII mapping does not use this separate sub-class element. Removing it addresses this warning without removing the supported classification identifier.
How to fix it
Change your product classification export so it omits ram:SubClassCode from ram:DesignatedProductClassification. Keep the classification code and its code-list details. If you need to include the sub-class information, put it in the item description (BT-154). Export the corrected file and 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
SubClassCode 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-SR-084 still fails, and which other rules do.
Related rules
- CII-SR-085 Remove product-class characteristics from the classification
- CII-SR-086 Remove the standard reference from the item classification
- CII-SR-087 Remove the individual product instance block
- CII-SR-088 Remove the certificate reference from the product details
- CII-SR-089 Remove the inspection reference from the product details
- CII-SR-090 Include exactly one country-of-origin ID