What it means
Within a line's ram:SpecifiedTradeProduct, this rule checks that no ram:DesignatedProductClassification contains a ram:SystemID child. This particular test does not check the classification code (BT-158) or its listID attribute.
Why it matters
The EN 16931 CII mapping identifies the classification scheme through listID on ram:ClassCode, rather than through ram:SystemID. This warning alone does not establish whether the invoice will be accepted.
How to fix it
Keep the item's classification code in ram:ClassCode. Identify the scheme that code belongs to and use its matching UNTDID 7143 code in the listID attribute. Do not simply copy an internal identifier from ram:SystemID. Remove ram:SystemID from the affected ram:DesignatedProductClassification and recheck the file.
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
SystemID 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-081 still fails, and which other rules do.
Related rules
- CII-SR-082 Leave out the classification system name on item classifications
- CII-SR-083 Leave out the class name on item classifications
- CII-SR-084 Remove the sub-class code from the item classification
- 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