field1 rules
Every EN 16931, Peppol and XRechnung rule that constrains BT-93. 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-DEC-02 | fatal | The allowed maximum number of decimals for the Document level allowance base amount (BT-93) is 2. |
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.