group of fields1 rules
Every EN 16931, Peppol and XRechnung rule that constrains BG-10. If one of them fails, the others are usually worth a look — a wrong value in one field tends to break several checks at once.
| BR-17 | fatal | The Payee name (BT-59) shall be provided in the Invoice, if the Payee (BG-10) is different from the Seller (BG-4) |
Nothing is stored, and the whole invoice is checked, not just this rule. A PDF only works if it is Factur-X / ZUGFeRD — a PDF with the invoice XML inside it.