field2 rules
Every EN 16931, Peppol and XRechnung rule that constrains BT-73. 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-29 | fatal | If both Invoicing period start date (BT-73) and Invoicing period end date (BT-74) are given then the Invoicing period end date (BT-74) shall be later or equal to the Invo… |
| BR-CO-19 | fatal | If Invoicing period (BG-14) is used, the Invoicing period start date (BT-73) or the Invoicing period end date (BT-74) shall be filled, or both. |