Peppol BIS Billing 3.0 / EN 16931 <2ms Edge Edge Compute

Factur-X / ZUGFeRD 2.2 UN/CEFACT CII E-Invoice Parser & Validator

Q: Does this support the French 2026 B2B e-invoicing mandate?

Yes. Factur-X (CII) and UBL 2.1 are the two primary syntax formats mandated for French B2B electronic invoicing and PDP (Plateforme de Dématérialisation Partenaire) compliance.

Parse and validate UN/CEFACT CrossIndustryInvoice XML files (Factur-X / ZUGFeRD 2.2 EN 16931 profile) into structured JSON. This specification documents the exact field layout, checksum rules, and validation behavior so your integration matches Peppol BIS Billing 3.0 / EN 16931 without reading the source standard.

Latency: <2ms Edge Availability: 99.99% Standard: Factur-X / ZUGFeRD 2.2 (EN 16931 / EXTENDED) Verified: Sep 2026 In-Memory Execution

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Interactive Edge Workbench

⚡ Live Factur-X / ZUGFeRD 2.2 UN/CEFACT CII E-Invoice Parser & Validator Interactive Workbench

Test real-time validation and schema parsing for Factur-X / ZUGFeRD 2.2 UN/CEFACT CII E-Invoice Parser & Validator directly in your browser. Runs in sub-5ms with zero setup.

32KB Demo Cap 60 req/min Burst <2ms V8 Compute Zero Data Retention

input.xml 0 B

output.json demo-ready

Status: Ready

{
  "status": "Click RUN VALIDATION to execute on the Cloudflare edge..."
}

Sandbox Quota: Free Tier (50 reqs/mo) • Production keys from $29/mo Get Free Sandbox Key →

LLM / MCP

Prompt-Ready Specification for AI Agents llms.txt

Structured format rules and schemas optimized for LLM coding agents and Model Context Protocol tooling.

Raw .md

Official Standard & Validation Protocol Authority: OpenPeppol AISBL & CEN TC 434 ↗

Quick Summary: Parse and validate UN/CEFACT CrossIndustryInvoice XML files (Factur-X / ZUGFeRD 2.2 EN 16931 profile) into structured JSON. Validates strictly against Peppol BIS Billing 3.0 / EN 16931 with sub-5ms in-memory response times.

Latency

<2ms Edge

Standard

Factur-X / ZUGFeRD 2.2 (EN 16931 / EXTENDED)

Version

Sep 2026 Edition

Max Payload

512 KB

Privacy

In-Memory (0 bytes stored)

Specification & Structural Breakdown

Technical Summary: Validates strictly against Peppol BIS Billing 3.0 / EN 16931. Payloads are parsed in memory and return clean, typed JSON in milliseconds with zero data logged.

Factur-X and ZUGFeRD 2.2 are identical Franco-German hybrid e-invoice standards utilizing UN/CEFACT CrossIndustryInvoice XML syntax.

Extracts SupplyChainTradeTransaction, ApplicableHeaderTradeAgreement, ApplicableHeaderTradeSettlement, and IncludedSupplyChainTradeLineItem.

Full validation of trade tax breakdowns, payment means (SEPA Credit Transfer 30/58), and SIREN/SIRET French participant identifiers.

CII XML Node	Field Name	Target JSON Property	Specification
rsm:ExchangedDocument/ram:ID	Invoice Number	invoice.id	Mandatory string
rsm:ExchangedDocument/ram:TypeCode	Document Type Code	invoice.documentType	380 (Invoice) / 381 (CreditNote)
ram:ApplicableTradeTax	Tax Breakdown	invoice.taxSubtotals	UNTDID 5305 Tax Category
ram:SpecifiedTradeSettlementHeaderMonetarySummation	Totals	invoice.totals	Line extension, Tax basis, Payable

Parsed JSON Response Model

The edge microservice transforms input payloads into strongly-typed hierarchical JSON envelopes with sub-5ms latency:

HTTP 200 JSON Response Envelope

{
  "valid": true,
  "syntax": "CII_INVOICE",
  "profile": "PEPPOL_BIS_BILLING_3_0",
  "summary": {
    "status": "COMPLIANT",
    "fatalCount": 0,
    "warningCount": 0
  }
}

Copy-Paste Integration Code (6 Languages)

Integrate Factur-X / ZUGFeRD 2.2 UN/CEFACT CII E-Invoice Parser & Validator directly into your production application with native, zero-dependency code snippets in cURL, Node.js, Python, Go, C#, and a ready-to-paste Claude prompt. Get a free API key → (no credit card required):

curl --request POST \
  --url "https://api.stanzaapi.com/peppol-validator/api/v1/validate" \
  --header "Content-Type: application/json" \
  --header "x-api-key: YOUR_API_KEY" \
  --data '{
  "xml": "<?xml version=\"1.0\" encoding=\"UTF-8\"?><Invoice xmlns=\"urn:oasis:names:specification:ubl:schema:xsd:Invoice-2\"><cbc:CustomizationID>urn:cen.eu:en16931:2017#compliant#urn:fdc:peppol.eu:2017:poacc:billing:3.0</cbc:CustomizationID><cbc:ID>INV-01</cbc:ID><cbc:IssueDate>2026-08-10</cbc:IssueDate><cbc:DocumentCurrencyCode>EUR</cbc:DocumentCurrencyCode><cac:AccountingSupplierParty><cac:Party><cac:PostalAddress><cac:Country><cbc:IdentificationCode>DE</cbc:IdentificationCode></cac:Country></cac:PostalAddress><cac:PartyLegalEntity><cbc:RegistrationName>Supplier</cbc:RegistrationName></cac:PartyLegalEntity></cac:Party></cac:AccountingSupplierParty><cac:AccountingCustomerParty><cac:Party><cac:PostalAddress><cac:Country><cbc:IdentificationCode>FR</cbc:IdentificationCode></cac:Country></cac:PostalAddress><cac:PartyLegalEntity><cbc:RegistrationName>Buyer</cbc:RegistrationName></cac:PartyLegalEntity></cac:Party></cac:AccountingCustomerParty><cac:TaxTotal><cbc:TaxAmount currencyID=\"EUR\">19.00</cbc:TaxAmount><cac:TaxSubtotal><cbc:TaxableAmount currencyID=\"EUR\">100.00</cbc:TaxableAmount><cbc:TaxAmount currencyID=\"EUR\">19.00</cbc:TaxAmount><cac:TaxCategory><cbc:ID>S</cbc:ID><cbc:Percent>19</cbc:Percent></cac:TaxCategory></cac:TaxSubtotal></cac:TaxTotal><cac:LegalMonetaryTotal><cbc:LineExtensionAmount currencyID=\"EUR\">100.00</cbc:LineExtensionAmount><cbc:TaxExclusiveAmount currencyID=\"EUR\">100.00</cbc:TaxExclusiveAmount><cbc:TaxInclusiveAmount currencyID=\"EUR\">119.00</cbc:TaxInclusiveAmount><cbc:PayableAmount currencyID=\"EUR\">119.00</cbc:PayableAmount></cac:LegalMonetaryTotal><cac:InvoiceLine><cbc:ID>1</cbc:ID><cbc:InvoicedQuantity unitCode=\"C62\">1</cbc:InvoicedQuantity><cbc:LineExtensionAmount currencyID=\"EUR\">100.00</cbc:LineExtensionAmount><cac:Item><cbc:Name>Item</cbc:Name><cac:ClassifiedTaxCategory><cbc:ID>S</cbc:ID><cbc:Percent>19</cbc:Percent></cac:ClassifiedTaxCategory></cac:Item><cac:Price><cbc:PriceAmount currencyID=\"EUR\">100.00</cbc:PriceAmount></cac:Price></cac:InvoiceLine></Invoice>"
}'

const response = await fetch("https://api.stanzaapi.com/peppol-validator/api/v1/validate", {
  method: "POST",
  headers: {
    "Content-Type": "application/json",
    "x-api-key": process.env.API_KEY || "YOUR_API_KEY"
  },
  body: JSON.stringify({
  "xml": "<?xml version=\"1.0\" encoding=\"UTF-8\"?><Invoice xmlns=\"urn:oasis:names:specification:ubl:schema:xsd:Invoice-2\"><cbc:CustomizationID>urn:cen.eu:en16931:2017#compliant#urn:fdc:peppol.eu:2017:poacc:billing:3.0</cbc:CustomizationID><cbc:ID>INV-01</cbc:ID><cbc:IssueDate>2026-08-10</cbc:IssueDate><cbc:DocumentCurrencyCode>EUR</cbc:DocumentCurrencyCode><cac:AccountingSupplierParty><cac:Party><cac:PostalAddress><cac:Country><cbc:IdentificationCode>DE</cbc:IdentificationCode></cac:Country></cac:PostalAddress><cac:PartyLegalEntity><cbc:RegistrationName>Supplier</cbc:RegistrationName></cac:PartyLegalEntity></cac:Party></cac:AccountingSupplierParty><cac:AccountingCustomerParty><cac:Party><cac:PostalAddress><cac:Country><cbc:IdentificationCode>FR</cbc:IdentificationCode></cac:Country></cac:PostalAddress><cac:PartyLegalEntity><cbc:RegistrationName>Buyer</cbc:RegistrationName></cac:PartyLegalEntity></cac:Party></cac:AccountingCustomerParty><cac:TaxTotal><cbc:TaxAmount currencyID=\"EUR\">19.00</cbc:TaxAmount><cac:TaxSubtotal><cbc:TaxableAmount currencyID=\"EUR\">100.00</cbc:TaxableAmount><cbc:TaxAmount currencyID=\"EUR\">19.00</cbc:TaxAmount><cac:TaxCategory><cbc:ID>S</cbc:ID><cbc:Percent>19</cbc:Percent></cac:TaxCategory></cac:TaxSubtotal></cac:TaxTotal><cac:LegalMonetaryTotal><cbc:LineExtensionAmount currencyID=\"EUR\">100.00</cbc:LineExtensionAmount><cbc:TaxExclusiveAmount currencyID=\"EUR\">100.00</cbc:TaxExclusiveAmount><cbc:TaxInclusiveAmount currencyID=\"EUR\">119.00</cbc:TaxInclusiveAmount><cbc:PayableAmount currencyID=\"EUR\">119.00</cbc:PayableAmount></cac:LegalMonetaryTotal><cac:InvoiceLine><cbc:ID>1</cbc:ID><cbc:InvoicedQuantity unitCode=\"C62\">1</cbc:InvoicedQuantity><cbc:LineExtensionAmount currencyID=\"EUR\">100.00</cbc:LineExtensionAmount><cac:Item><cbc:Name>Item</cbc:Name><cac:ClassifiedTaxCategory><cbc:ID>S</cbc:ID><cbc:Percent>19</cbc:Percent></cac:ClassifiedTaxCategory></cac:Item><cac:Price><cbc:PriceAmount currencyID=\"EUR\">100.00</cbc:PriceAmount></cac:Price></cac:InvoiceLine></Invoice>"
})
});

const data = await response.json();
console.log(data);

import requests
import json

url = "https://api.stanzaapi.com/peppol-validator/api/v1/validate"
headers = {
    "Content-Type": "application/json",
    "x-api-key": "YOUR_API_KEY"
}
payload = {
    "xml": "<?xml version=\"1.0\" encoding=\"UTF-8\"?><Invoice xmlns=\"urn:oasis:names:specification:ubl:schema:xsd:Invoice-2\"><cbc:CustomizationID>urn:cen.eu:en16931:2017#compliant#urn:fdc:peppol.eu:2017:poacc:billing:3.0</cbc:CustomizationID><cbc:ID>INV-01</cbc:ID><cbc:IssueDate>2026-08-10</cbc:IssueDate><cbc:DocumentCurrencyCode>EUR</cbc:DocumentCurrencyCode><cac:AccountingSupplierParty><cac:Party><cac:PostalAddress><cac:Country><cbc:IdentificationCode>DE</cbc:IdentificationCode></cac:Country></cac:PostalAddress><cac:PartyLegalEntity><cbc:RegistrationName>Supplier</cbc:RegistrationName></cac:PartyLegalEntity></cac:Party></cac:AccountingSupplierParty><cac:AccountingCustomerParty><cac:Party><cac:PostalAddress><cac:Country><cbc:IdentificationCode>FR</cbc:IdentificationCode></cac:Country></cac:PostalAddress><cac:PartyLegalEntity><cbc:RegistrationName>Buyer</cbc:RegistrationName></cac:PartyLegalEntity></cac:Party></cac:AccountingCustomerParty><cac:TaxTotal><cbc:TaxAmount currencyID=\"EUR\">19.00</cbc:TaxAmount><cac:TaxSubtotal><cbc:TaxableAmount currencyID=\"EUR\">100.00</cbc:TaxableAmount><cbc:TaxAmount currencyID=\"EUR\">19.00</cbc:TaxAmount><cac:TaxCategory><cbc:ID>S</cbc:ID><cbc:Percent>19</cbc:Percent></cac:TaxCategory></cac:TaxSubtotal></cac:TaxTotal><cac:LegalMonetaryTotal><cbc:LineExtensionAmount currencyID=\"EUR\">100.00</cbc:LineExtensionAmount><cbc:TaxExclusiveAmount currencyID=\"EUR\">100.00</cbc:TaxExclusiveAmount><cbc:TaxInclusiveAmount currencyID=\"EUR\">119.00</cbc:TaxInclusiveAmount><cbc:PayableAmount currencyID=\"EUR\">119.00</cbc:PayableAmount></cac:LegalMonetaryTotal><cac:InvoiceLine><cbc:ID>1</cbc:ID><cbc:InvoicedQuantity unitCode=\"C62\">1</cbc:InvoicedQuantity><cbc:LineExtensionAmount currencyID=\"EUR\">100.00</cbc:LineExtensionAmount><cac:Item><cbc:Name>Item</cbc:Name><cac:ClassifiedTaxCategory><cbc:ID>S</cbc:ID><cbc:Percent>19</cbc:Percent></cac:ClassifiedTaxCategory></cac:Item><cac:Price><cbc:PriceAmount currencyID=\"EUR\">100.00</cbc:PriceAmount></cac:Price></cac:InvoiceLine></Invoice>"
}

response = requests.post(url, json=payload, headers=headers)
print(response.json())

package main

import (
	"bytes"
	"fmt"
	"io"
	"net/http"
	"os"
)

func main() {
	url := "https://api.stanzaapi.com/peppol-validator/api/v1/validate"
	payload := []byte(`{"xml":"<?xml version=\"1.0\" encoding=\"UTF-8\"?><Invoice xmlns=\"urn:oasis:names:specification:ubl:schema:xsd:Invoice-2\"><cbc:CustomizationID>urn:cen.eu:en16931:2017#compliant#urn:fdc:peppol.eu:2017:poacc:billing:3.0</cbc:CustomizationID><cbc:ID>INV-01</cbc:ID><cbc:IssueDate>2026-08-10</cbc:IssueDate><cbc:DocumentCurrencyCode>EUR</cbc:DocumentCurrencyCode><cac:AccountingSupplierParty><cac:Party><cac:PostalAddress><cac:Country><cbc:IdentificationCode>DE</cbc:IdentificationCode></cac:Country></cac:PostalAddress><cac:PartyLegalEntity><cbc:RegistrationName>Supplier</cbc:RegistrationName></cac:PartyLegalEntity></cac:Party></cac:AccountingSupplierParty><cac:AccountingCustomerParty><cac:Party><cac:PostalAddress><cac:Country><cbc:IdentificationCode>FR</cbc:IdentificationCode></cac:Country></cac:PostalAddress><cac:PartyLegalEntity><cbc:RegistrationName>Buyer</cbc:RegistrationName></cac:PartyLegalEntity></cac:Party></cac:AccountingCustomerParty><cac:TaxTotal><cbc:TaxAmount currencyID=\"EUR\">19.00</cbc:TaxAmount><cac:TaxSubtotal><cbc:TaxableAmount currencyID=\"EUR\">100.00</cbc:TaxableAmount><cbc:TaxAmount currencyID=\"EUR\">19.00</cbc:TaxAmount><cac:TaxCategory><cbc:ID>S</cbc:ID><cbc:Percent>19</cbc:Percent></cac:TaxCategory></cac:TaxSubtotal></cac:TaxTotal><cac:LegalMonetaryTotal><cbc:LineExtensionAmount currencyID=\"EUR\">100.00</cbc:LineExtensionAmount><cbc:TaxExclusiveAmount currencyID=\"EUR\">100.00</cbc:TaxExclusiveAmount><cbc:TaxInclusiveAmount currencyID=\"EUR\">119.00</cbc:TaxInclusiveAmount><cbc:PayableAmount currencyID=\"EUR\">119.00</cbc:PayableAmount></cac:LegalMonetaryTotal><cac:InvoiceLine><cbc:ID>1</cbc:ID><cbc:InvoicedQuantity unitCode=\"C62\">1</cbc:InvoicedQuantity><cbc:LineExtensionAmount currencyID=\"EUR\">100.00</cbc:LineExtensionAmount><cac:Item><cbc:Name>Item</cbc:Name><cac:ClassifiedTaxCategory><cbc:ID>S</cbc:ID><cbc:Percent>19</cbc:Percent></cac:ClassifiedTaxCategory></cac:Item><cac:Price><cbc:PriceAmount currencyID=\"EUR\">100.00</cbc:PriceAmount></cac:Price></cac:InvoiceLine></Invoice>"}`)

	req, _ := http.NewRequest("POST", url, bytes.NewBuffer(payload))
	req.Header.Add("Content-Type", "application/json")
	req.Header.Add("x-api-key", os.Getenv("API_KEY"))

	res, err := http.DefaultClient.Do(req)
	if err != nil {
		panic(err)
	}
	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)
	fmt.Println(string(body))
}

using System;
using System.Net.Http;
using System.Text;
using System.Threading.Tasks;

class Program
{
    static async Task Main()
    {
        using var client = new HttpClient();
        client.DefaultRequestHeaders.Add("x-api-key", Environment.GetEnvironmentVariable("API_KEY") ?? "YOUR_API_KEY");

        var json = @"{""xml"":""<?xml version=\""1.0\"" encoding=\""UTF-8\""?><Invoice xmlns=\""urn:oasis:names:specification:ubl:schema:xsd:Invoice-2\""><cbc:CustomizationID>urn:cen.eu:en16931:2017#compliant#urn:fdc:peppol.eu:2017:poacc:billing:3.0</cbc:CustomizationID><cbc:ID>INV-01</cbc:ID><cbc:IssueDate>2026-08-10</cbc:IssueDate><cbc:DocumentCurrencyCode>EUR</cbc:DocumentCurrencyCode><cac:AccountingSupplierParty><cac:Party><cac:PostalAddress><cac:Country><cbc:IdentificationCode>DE</cbc:IdentificationCode></cac:Country></cac:PostalAddress><cac:PartyLegalEntity><cbc:RegistrationName>Supplier</cbc:RegistrationName></cac:PartyLegalEntity></cac:Party></cac:AccountingSupplierParty><cac:AccountingCustomerParty><cac:Party><cac:PostalAddress><cac:Country><cbc:IdentificationCode>FR</cbc:IdentificationCode></cac:Country></cac:PostalAddress><cac:PartyLegalEntity><cbc:RegistrationName>Buyer</cbc:RegistrationName></cac:PartyLegalEntity></cac:Party></cac:AccountingCustomerParty><cac:TaxTotal><cbc:TaxAmount currencyID=\""EUR\"">19.00</cbc:TaxAmount><cac:TaxSubtotal><cbc:TaxableAmount currencyID=\""EUR\"">100.00</cbc:TaxableAmount><cbc:TaxAmount currencyID=\""EUR\"">19.00</cbc:TaxAmount><cac:TaxCategory><cbc:ID>S</cbc:ID><cbc:Percent>19</cbc:Percent></cac:TaxCategory></cac:TaxSubtotal></cac:TaxTotal><cac:LegalMonetaryTotal><cbc:LineExtensionAmount currencyID=\""EUR\"">100.00</cbc:LineExtensionAmount><cbc:TaxExclusiveAmount currencyID=\""EUR\"">100.00</cbc:TaxExclusiveAmount><cbc:TaxInclusiveAmount currencyID=\""EUR\"">119.00</cbc:TaxInclusiveAmount><cbc:PayableAmount currencyID=\""EUR\"">119.00</cbc:PayableAmount></cac:LegalMonetaryTotal><cac:InvoiceLine><cbc:ID>1</cbc:ID><cbc:InvoicedQuantity unitCode=\""C62\"">1</cbc:InvoicedQuantity><cbc:LineExtensionAmount currencyID=\""EUR\"">100.00</cbc:LineExtensionAmount><cac:Item><cbc:Name>Item</cbc:Name><cac:ClassifiedTaxCategory><cbc:ID>S</cbc:ID><cbc:Percent>19</cbc:Percent></cac:ClassifiedTaxCategory></cac:Item><cac:Price><cbc:PriceAmount currencyID=\""EUR\"">100.00</cbc:PriceAmount></cac:Price></cac:InvoiceLine></Invoice>""}";
        var payload = new StringContent(json, Encoding.UTF8, "application/json");

        var response = await client.PostAsync("https://api.stanzaapi.com/peppol-validator/api/v1/validate", payload);
        var content = await response.Content.ReadAsStringAsync();
        Console.WriteLine(content);
    }
}

Integrate the StanzaAPI peppol-validator micro-API.

Endpoint: POST https://api.stanzaapi.com/peppol-validator/api/v1/validate
Auth header: x-api-key: YOUR_API_KEY
Content-Type: application/json
Request body:
{
  "xml": "<?xml version=\"1.0\" encoding=\"UTF-8\"?><Invoice xmlns=\"urn:oasis:names:specification:ubl:schema:xsd:Invoice-2\"><cbc:CustomizationID>urn:cen.eu:en16931:2017#compliant#urn:fdc:peppol.eu:2017:poacc:billing:3.0</cbc:CustomizationID><cbc:ID>INV-01</cbc:ID><cbc:IssueDate>2026-08-10</cbc:IssueDate><cbc:DocumentCurrencyCode>EUR</cbc:DocumentCurrencyCode><cac:AccountingSupplierParty><cac:Party><cac:PostalAddress><cac:Country><cbc:IdentificationCode>DE</cbc:IdentificationCode></cac:Country></cac:PostalAddress><cac:PartyLegalEntity><cbc:RegistrationName>Supplier</cbc:RegistrationName></cac:PartyLegalEntity></cac:Party></cac:AccountingSupplierParty><cac:AccountingCustomerParty><cac:Party><cac:PostalAddress><cac:Country><cbc:IdentificationCode>FR</cbc:IdentificationCode></cac:Country></cac:PostalAddress><cac:PartyLegalEntity><cbc:RegistrationName>Buyer</cbc:RegistrationName></cac:PartyLegalEntity></cac:Party></cac:AccountingCustomerParty><cac:TaxTotal><cbc:TaxAmount currencyID=\"EUR\">19.00</cbc:TaxAmount><cac:TaxSubtotal><cbc:TaxableAmount currencyID=\"EUR\">100.00</cbc:TaxableAmount><cbc:TaxAmount currencyID=\"EUR\">19.00</cbc:TaxAmount><cac:TaxCategory><cbc:ID>S</cbc:ID><cbc:Percent>19</cbc:Percent></cac:TaxCategory></cac:TaxSubtotal></cac:TaxTotal><cac:LegalMonetaryTotal><cbc:LineExtensionAmount currencyID=\"EUR\">100.00</cbc:LineExtensionAmount><cbc:TaxExclusiveAmount currencyID=\"EUR\">100.00</cbc:TaxExclusiveAmount><cbc:TaxInclusiveAmount currencyID=\"EUR\">119.00</cbc:TaxInclusiveAmount><cbc:PayableAmount currencyID=\"EUR\">119.00</cbc:PayableAmount></cac:LegalMonetaryTotal><cac:InvoiceLine><cbc:ID>1</cbc:ID><cbc:InvoicedQuantity unitCode=\"C62\">1</cbc:InvoicedQuantity><cbc:LineExtensionAmount currencyID=\"EUR\">100.00</cbc:LineExtensionAmount><cac:Item><cbc:Name>Item</cbc:Name><cac:ClassifiedTaxCategory><cbc:ID>S</cbc:ID><cbc:Percent>19</cbc:Percent></cac:ClassifiedTaxCategory></cac:Item><cac:Price><cbc:PriceAmount currencyID=\"EUR\">100.00</cbc:PriceAmount></cac:Price></cac:InvoiceLine></Invoice>"
}

Rules:
- Send the request with a 2-second timeout.
- Parse the standard envelope { success, data, meta: { latency_ms, version } }.
- On failure, read { success: false, error, code } and branch on the code.
- Do not retry 4xx responses; surface the error code to the caller.
- Treat invalid-but-well-formed payloads as HTTP 200 with data.valid === false.

Frequently Asked Questions & Technical Notes

Does this support the French 2026 B2B e-invoicing mandate?

Yes. Factur-X (CII) and UBL 2.1 are the two primary syntax formats mandated for French B2B electronic invoicing and PDP (Plateforme de Dématérialisation Partenaire) compliance.