# BR-FR-09_BT-29

Source: https://xmlvalid.com/rules/BR-FR-09_BT-29

> Le SIRET doit contenir 14 chiffres et commencer par le SIREN. SIRET : " … ", SIREN : " … ".

- Level: error
- Rule sets: French e-invoicing rules (UBL) 1.4.0.04
- Context: `ubl:Invoice/cac:AccountingSupplierParty/cac:Party | cn:CreditNote/cac:AccountingSupplierParty/cac:Party`
- Test: `not($siret) or custom:check-siret-siren-coherence($siret[1], $siren)`

> BR-FR-09/BT-29 : Le SIRET doit contenir 14 chiffres et commencer par le SIREN. SIRET : " … ", SIREN : " … ".

- Level: error
- Rule sets: French e-invoicing rules (CII) 1.4.0.04
- Context: `rsm:CrossIndustryInvoice/rsm:SupplyChainTradeTransaction/ram:ApplicableHeaderTradeAgreement/ram:SellerTradeParty`
- Test: `not($siret) or custom:check-siret-siren-coherence($siret[1], $siren)`

Validate a document against these rules: https://xmlvalid.com/validate