How do I validate SIRET + TVA intracommunautaire in Magento?

Q: How do I validate SIRET + TVA intracommunautaire in Magento?

Two French B2B identifiers, two different validators:SIRET (Système d’Identification du Répertoire des Etablissements) — 14-digit number identifying a specific establishment of a French company. Validated against the SIRENE database (free API from INSEE).TVA intracommunautaire (TVA intracom) — format FR + 2 check digits + 9-digit SIREN. Validated via the VIES VAT service (EU-wide).For Magento B2B we:Add SIRET + TVA intracom fields to the customer entity (or B2B company if you’re on Adobe Commerce).Validate SIRET against the SIRENE API on registration — rejects invalid / closed companies, auto-fills company name + address.Validate TVA intracom against VIES — required for cross-border zero-rated B2B sales (intra-EU).Apply 0% TVA on B2B intra-EU sales with a valid VIES-validated TVA number (reverse charge); 20% on B2C and FR→FR B2B.Cache validations 30 days, re-validate on any address change.

Question

Accepted Answer

Two French B2B identifiers, two different validators:

SIRET (Système d’Identification du Répertoire des Etablissements) — 14-digit number identifying a specific establishment of a French company. Validated against the SIRENE database (free API from INSEE).
TVA intracommunautaire (TVA intracom) — format FR + 2 check digits + 9-digit SIREN. Validated via the VIES VAT service (EU-wide).

For Magento B2B we:

Add SIRET + TVA intracom fields to the customer entity (or B2B company if you’re on Adobe Commerce).
Validate SIRET against the SIRENE API on registration — rejects invalid / closed companies, auto-fills company name + address.
Validate TVA intracom against VIES — required for cross-border zero-rated B2B sales (intra-EU).
Apply 0% TVA on B2B intra-EU sales with a valid VIES-validated TVA number (reverse charge); 20% on B2C and FR→FR B2B.
Cache validations 30 days, re-validate on any address change.