French VAT reverse-charge entry
When VAT is not charged by the supplier but due by the customer, the entry is not only 44566 / 401. The PCG uses 4452 for VAT due under reverse charge.
Principle
Construction reverse charge, intra-EU acquisitions, some imports: the customer self-assesses. You recognise both input VAT and VAT due, without paying VAT to the supplier.
Comptyx’s France profile maps vat_reverse_charge to 4452. The AI does not invent reverse charge: the engine applies it when the document and business rules require it.
Review
Check the reverse-charge wording on the invoice before export. A document without that wording must not create 4452 by magic.