field3 rules
Every EN 16931, Peppol and XRechnung rule that constrains BT-125. 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-DEX-01 | fatal | Das Element "Attached Document" (BT-125) benutzt einen nicht zulässigen MIME-Code: . Im Falle einer Extension darf zusätzlich zu der Liste der mime codes (definiert in Ab… |
| CII-SR-476 | warning | Only one AdditionalReferencedDocument AttachmentBinaryObject BT-125 is allowed with TypeCode 916. |
| DE-R-022 | fatal | Attached documents provided with an invoice in "ADDITIONAL SUPPORTING DOCUMENTS" (BG-24) shall have a unique filename (non case-sensitive) within the element ″Attached do… |
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.