What it means
The rule checks that rsm:ExchangedDocument has no direct ram:IssuerTradeParty child. It does not target the seller (BG-4) or buyer (BG-7) sections.
Why it matters
The EN 16931 CII mapping does not use this separate document issuer section. The party issuing an invoice is not necessarily the seller.
How to fix it
Remove the whole ram:IssuerTradeParty element from rsm:ExchangedDocument. Check that the seller and buyer details are recorded in their respective sections, not only here. Do not copy issuer details into the seller section unless they actually describe the seller. Check the updated file 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
IssuerTradeParty 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-034 still fails, and which other rules do.