BR-29
Core EN 16931 business rules · severity: error · in EN 16931 (UBL), EN 16931 (CII)
Official rule text
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 Invoicing period start date (BT-73).
What it means
A core EN 16931 business rule.
Fields involved
BT-73Invoicing period start dateBT-74Invoicing period end date
How to fix it
Open the invoice in your invoicing software or XML, correct the fields named in the rule, and check the file again. Our free validator shows exactly where in the file the rule failed. If you need a new compliant invoice, you can create one for free.