BR-FR-BD-02_BT-31
Validation message
Explanation
For two-sided invoices (billing framework S9, B9 or M9 in BT-23) the invoice must contain exactly two top-level lines of type 'GROUP' — one carrying the seller's identifier and one the buyer's as line seller. The requirement comes from the French e-invoicing standard XP Z12-012, not from EN 16931.
How to fix
Create one GROUP line each for seller and buyer and enter the respective company identifier there. (Typically a software-side issue, not user input — raise this with your invoicing software vendor; if you're receiving the invoice, ask the sender to address it with theirs.)
Applies to
- Factur-X / FR (CII)