field2 rules
Every EN 16931, Peppol and XRechnung rule that constrains BT-24. 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-01 | fatal | An Invoice shall have a Specification identifier (BT-24). |
| BR-DE-21 | warning | Das Element "Specification identifier" (BT-24) soll syntaktisch der Kennung des Standards XRechnung entsprechen. |