BR-01
Core EN 16931 business rules · severity: error · in EN 16931 (UBL), EN 16931 (CII)
Official rule text
An Invoice shall have a Specification identifier (BT-24).
What it means
Every e-invoice must say which specification it follows (CustomizationID / guideline ID).
Fields involved
BT-24Specification identifier
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.