What it means
The test counts all Description children of SpecifiedTradePaymentTerms blocks under ApplicableHeaderTradeSettlement and allows zero or one in total. Separate blocks do not each get their own permitted Description.
Why it matters
Payment terms (BT-20) are represented by one invoice-level text, not separate texts distributed across payment terms blocks.
How to fix it
Combine the agreed payment conditions into one Description under SpecifiedTradePaymentTerms. Remove the other Description elements without losing any conditions. If more than one payment terms block remains, also correct the block count covered by CII-SR-452. Recheck your 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
Only one SpecifiedTradePaymentTerms Description should 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-453 still fails, and which other rules do.
Related rules
- CII-SR-454 Use exactly one VAT entry per line settlement
- CII-SR-455 Give the seller contact only once
- CII-SR-456 Give the buyer contact only once
- CII-SR-457 Give the tender or lot reference only once
- CII-SR-458 Give the invoiced object identifier only once
- CII-SR-459 Give the seller's electronic address only once