What it means
The delivery details of an invoice line (SpecifiedLineTradeDelivery in the XML) should not contain a RequestedDeliverySupplyChainEvent. That element holds the date on which the buyer wanted the goods to arrive. EN 16931 has no requested delivery date. Its delivery date (BT-72) is the date the goods or services were actually supplied.
Why it matters
This is a warning, so the file is not rejected. A requested date is order information, and EN 16931 invoices do not carry it, so receiving software usually ignores it. It is worth fixing if your recipient wants a file without warnings.
How to fix it
Clear the requested delivery date from the lines in your invoicing software, or switch the export to the EN 16931 profile instead of an extended one. Do not copy it into the delivery date for the whole invoice, because that date means the actual date of supply. If you build the XML yourself, delete the RequestedDeliverySupplyChainEvent block from the line's SpecifiedLineTradeDelivery.
The rule as published
RequestedDeliverySupplyChainEvent 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-169 still fails, and which other rules do.