BR-30
Core EN 16931 business rules · severity: error · in EN 16931 (UBL), EN 16931 (CII)
Official rule text
If both Invoice line period start date (BT-134) and Invoice line period end date (BT-135) are given then the Invoice line period end date (BT-135) shall be later or equal to the Invoice line period start date (BT-134).
What it means
A core EN 16931 business rule.
Fields involved
BT-134Invoice line period start dateBT-135Invoice line 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.