ChorusPro France

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Chorus Pro France

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Developer	Invopop
Category	Government
Scope	B2G
Country	France

Chorus Pro is a mandatory service provided by the French government for invoicing French public institutions. The platform allows businesses to upload invoices in multiple e-invoicing formats and track them throughout the French public administration process. All invoices to French public sector entities must be submitted through Chorus Pro.The platform supports various e-invoicing formats including Cross Industry Invoice (CII), and implements the European Norm 16931 (EN16931) European standard for electronic invoicing with additional French-specific requirements.Key Features

Workflow Automation: Provides automated workflows for supplier registration and invoice submission to French public institutions through Chorus Pro.
CII Format Generation: Using the UN/CEFACT CII format with Chorus Pro V1 extensions ensures compliance with French B2G invoicing requirements.
EN16931 Compliance: Implements the European Norm 16931 standard with French-specific extensions including SIRET number validation and service codes for government departments.
Supplier Registration: Automated supplier registration workflow that generates unique registration links for suppliers to complete Chorus Pro authentication.
Invoice Submission: Direct submission of invoices to the Chorus Pro platform with CII XML generation and validation.
Invoice Tracking: Track invoice status using invoice identifiers (series plus code) in the Chorus Pro portal.
Invoice Modification: Supports modification and resubmission of invoices until they are accepted by the receiving French public institution.

FAQ

Invoicing questions

How do I configure my workspace for French invoicing?

Two channels depending on the recipient: B2G uses Chorus Pro (CII format); B2B from September 2026 uses the Plateforme Agréée model (UBL, CII, or Factur-X via Peppol). Invopop is an approved PA — install the France PA app for B2B and the Chorus Pro app for B2G.

How can I view an XML attached to a PDF?

In Factur-X PDFs, the XML file is embedded within the PDF itself. To extract and view it, use the Attachments section in Adobe Acrobat Reader, or a tool like the SysTools PDF Extractor.

What invoice formats does Chorus Pro support?

Chorus Pro primarily supports CII format based on EN16931. Invopop currently focuses on CII with plans to add additional formats in the future.

Do I need a SIRET number to use Chorus Pro?

French businesses need a SIRET number. Foreign businesses can use their local tax identifier, but should verify acceptance with the receiving French institution.

Can I modify invoices after sending to Chorus Pro?

Yes, you can modify and resubmit invoices until the receiving institution accepts them. Once accepted, invoices become locked and cannot be modified.

How do I find my invoice in Chorus Pro?

Use your GOBL invoice series and code combined as the invoice identifier in the Chorus Pro portal to locate your submitted invoices.

Are there file size limits for Chorus Pro invoices?

Chorus Pro has specific file size and format requirements. Invopop handles these automatically when generating CII XML files from your GOBL invoices.

What GOBL fields are required for Chorus Pro?

The recipient’s SIRET (or equivalent identifier) plus a Chorus Pro service code where applicable. Invopop generates EN 16931 CII XML by default — UBL is also accepted by Chorus Pro.

What should we do if the customer doesn't belong to the Peppol network?

In countries where Peppol is the standard but not mandatory, you may still need to issue an e-invoice when the recipient isn’t on the network. Both parties can agree on an alternative transfer method, but the invoice must still be EN16931 compliant.Recommended approach:

Set up a separate workflow that generates the XML without the send-Peppol-document step
Or reuse your existing workflow without the customer Peppol ID — the send step is automatically skipped
Fetch the generated XML and deliver it through the agreed channel, typically email

How do I handle B2C invoices in Peppol?

B2C invoices typically lack the structured customer information required for Peppol delivery, and most consumers don’t have inboxes. Use a conditional workflow:

Add an If/Else step that checks for a customer inbox using count(customer.inboxes, true) > 0.
On the false branch, generate a PDF and email it to the customer, then stop the flow.

This routes B2B invoices through Peppol while keeping a smooth path for consumers.

How do I handle 'Receiver Not Found' errors?

If a job fails with KO and receiver not found in the peppol network, treat it like an invalid email address — the recipient simply isn’t reachable on Peppol. Add the Lookup Participant ID step (ideally in a separate validation workflow run against customer data) so you catch missing IDs before generating the invoice.

Should I set the `$regime` field when using Peppol?

No. The regime is automatically derived from the supplier’s settings, which is the recommended approach for Peppol — leave it unset on the document.

Where do I find Peppol GOBL documentation?

See the oasis-ubl-v2 addon and the Peppol app reference for required fields, supported document types, and Participant ID schemes.

Registering supplier questions

How do I onboard a new supplier in France?

For B2B PA flows: register the supplier via the France PA Register Party workflow (publishes the SIREN to the Annuaire and Peppol). For Chorus Pro: register the supplier with their SIRET on Chorus Pro’s portal and link credentials in the Chorus Pro app.

How are supplier credentials stored in Invopop for France?

France PA does not require supplier-side certificates — Peppol uses Invopop’s AP cert. Chorus Pro uses an OAuth token bound to the supplier’s account; the token is encrypted at rest in Invopop.

What happens if my supplier registration fails?

Ensure the supplier has a valid Chorus Pro account and provided correct credentials. Contact support if registration workflow issues persist.

What credentials does Chorus Pro require to authenticate a supplier?

OAuth 2.0 client credentials issued by Chorus Pro after registration. Invopop stores the token encrypted; suppliers can revoke access at any time through Chorus Pro’s portal.

How do I register for a Peppol inbox in Invopop?

Upload the company as a party (Console → Parties → Suppliers → + New Supplier, or via the Create an Entry API) with name, tax_id, address, and email. Then run it through the party registration workflow — the contact will receive a registration wizard link to provide proof of ownership.Once approved, the party is registered on the Peppol network (SMP+SML+Peppol visibility by default with the ubl-invoice doc group) and ready to receive invoices.

I get 'XXXX:XXXXXXXXX is already registered' when registering a supplier — what now?

A supplier with that Participant ID already exists in your workspace. Either reuse the existing party or, if it really is a new entity, check whether it should be registered under an alternative scheme (for example Belgium’s 9925 VAT scheme rather than the default 0208).

How do I assign multiple inboxes to a single supplier?

Register them through different silo entries, even though they represent the same legal party. The supplier must upload proof of ownership for each inbox.

What are Participant IDs?

Unique identifiers for entities on the Peppol network, made up of two parts:

Scheme — identifies the type of identifier (e.g. 9920 for Spanish VAT, 0208 for Belgian KBO/BCE)
Code — the actual identification number

Participant IDs are usually based on VAT numbers or local business identifiers, and Invopop can derive them automatically from a Tax ID. Some countries support multiple schemes — Belgium, for example, defaults to 0208 but some entities are only registered under 9925 (VAT). If you hit a “receiver not found” error, the recipient may be registered under an alternative scheme.

What visibility level should I set on my Peppol Party?

Peppol Party visibility determines what you can send and receive:

smp — SMP only, for testing
smp+sml — SMP and SML, useful when you only want to send
smp+sml+peppol — SMP, SML, and the Peppol Directory, recommended for both sending and receiving (and for being discoverable in the Directory)

In general, use the highest visibility available.

Receiving questions

How do I import received invoices in France?

Register the recipient with Invopop as their Plateforme Agréée. Inbound documents (UBL, CII, Factur-X) are converted to GOBL and stored in the Expenses folder. Chorus Pro inbound flow is separate and routes via the Chorus Pro app.

How does Invopop convert received French invoices into GOBL?

UBL via gobl.peppol; CII and Factur-X via gobl.cii. The original structured XML (or PDF/A-3 with embedded XML) is preserved as a silo entry attachment.

How do I import received invoices via Peppol?

Register the recipient as a Peppol participant with Invopop as their Access Point. Incoming documents are routed through your configured Import workflow, which converts the UBL or CII payload to GOBL and stores the entry in the Expenses folder.

Can I remove UBL or CII from the 'Peppol receive invoice' workflow if I only use one format?

Yes. Either format can be removed based on your needs. The default template includes both for comprehensiveness, but if you’re certain you’ll only receive invoices in one syntax, dropping the other simplifies the workflow and reduces the apps you need to activate.

How are incoming Peppol documents converted into GOBL?

The Import workflow’s UBL and CII parser steps map the inbound XML into a GOBL invoice. From there you can route it to webhooks, Google Drive, accounting integrations, or any other destination — the GOBL representation is the single source of truth for downstream processing.

Reporting questions

How do I schedule periodic reports for France?

For TVA, file via DGFiP’s portal — Invopop does not generate CA3 yet. For e-reporting (Flow 10): submit via your Plateforme Agréée — Invopop’s e-reporting workflow batches transactions per period and submits to the PPF.

What format does France expect for periodic reports?

TVA: DGFiP’s EDI-TVA XML schema. E-reporting Flow 10: a structured JSON/XML payload defined by the PPF specification (currently in beta). Invopop emits Flow 10 via the upcoming fr-ctc-flow10-v1 GOBL addon.

More answers in our France FAQ section

Chorus Pro issue invoice

Example Chorus Pro invoice workflow

{
    "name": "Send to Chorus Pro",
    "description": "Generate and send invoice to Chorus Pro using CII",
    "schema": "bill/invoice",
    "steps": [
        {
            "id": "241c1b60-4cec-11f0-bcdc-61b84b5eeae8",
            "name": "Set State",
            "provider": "silo.state",
            "summary": "Set state to `processing`{.state .processing}",
            "config": {
                "state": "processing"
            }
        },
        {
            "id": "0dba81f0-4ba1-11f0-a0a5-bbd7c9d8117a",
            "name": "Sign Envelope",
            "provider": "silo.close"
        },
        {
            "id": "3d048690-4ba1-11f0-a0a5-bbd7c9d8117a",
            "name": "Generate UN/CEFACT CII Invoice",
            "provider": "cii.generate",
            "summary": "Chorus Pro V1",
            "config": {
                "doc_type": "choruspro-v1"
            }
        },
        {
            "id": "2cd30490-4ba1-11f0-a0a5-bbd7c9d8117a",
            "name": "Send an invoice to Chorus-Pro",
            "provider": "chorus-pro.send"
        },
        {
            "id": "282dac00-4cec-11f0-bcdc-61b84b5eeae8",
            "name": "Set State",
            "provider": "silo.state",
            "summary": "Set state to `sent`{.state .sent}",
            "config": {
                "state": "sent"
            }
        }
    ],
    "rescue": [
        {
            "id": "2b9c6cf0-4cec-11f0-bcdc-61b84b5eeae8",
            "name": "Set State",
            "provider": "silo.state",
            "summary": "Set state to `error`{.state .error}",
            "config": {
                "state": "error"
            }
        }
    ]
}

Chorus Pro register supplier

Example Chorus Pro supplier registration

{
    "name": "Register Chorus Pro Supplier",
    "description": "Enables suppliers to register for Chorus Pro invoice generation",
    "schema": "org/party",
    "steps": [
        {
            "id": "9ed27c40-4ced-11f0-bcdc-61b84b5eeae8",
            "name": "Set State",
            "provider": "silo.state",
            "summary": "Set state to `processing`{.state .processing}",
            "config": {
                "state": "processing"
            }
        },
        {
            "id": "b8d3dc10-4ba3-11f0-a0a5-bbd7c9d8117a",
            "name": "Register a supplier for Chorus Pro",
            "provider": "chorus-pro.register"
        },
        {
            "id": "a3d43940-4ced-11f0-bcdc-61b84b5eeae8",
            "name": "Set State",
            "provider": "silo.state",
            "summary": "Set state to `registered`{.state .registered}",
            "config": {
                "state": "registered"
            }
        }
    ],
    "rescue": [
        {
            "id": "a6c4f090-4ced-11f0-bcdc-61b84b5eeae8",
            "name": "Set State",
            "provider": "silo.state",
            "summary": "Set state to `error`{.state .error}",
            "config": {
                "state": "error"
            }
        }
    ]
}

Chorus Pro B2G Invoice

In this example, we’re issuing a Chorus Pro invoice for business-to-government transactions in France. Chorus Pro is the mandatory platform for submitting invoices to French public sector entities.Notice:

the minimal version (chorus-pro-b2g.min.mdx) contains only the essential fields required to create the B2G invoice,
the fr-chorus-pro-v1 addon ensures the document will be validated using the Chorus Pro rules built into the GOBL library,
the customer must be a French public sector entity with a valid SIRET number,
specific Chorus Pro extensions and identifiers are required for public procurement (such as service codes and commitment numbers),
there are no totals or calculations in the minimal version; all these will be calculated automatically when running gobl build,
the built version (chorus-pro-b2g.mdx) shows the normalized document with calculated totals, line item sums, TVA breakdowns, and automatically generated fields,
the invoice will be formatted according to Chorus Pro requirements and submitted through the platform, and,
all invoices to French public entities above €25,000 must be submitted through Chorus Pro.

{
    "$schema": "https://gobl.org/draft-0/bill/invoice",
    "$regime": "FR",
    "$addons": [
        "eu-en16931-v2017",
        "fr-choruspro-v1"
    ],
    "uuid": "019783e7-33b1-7000-a1a5-6139e214b447",
    "type": "standard",
    "series": "SAMPLE",
    "code": "2345",
    "issue_date": "2025-06-18",
    "currency": "EUR",
    "supplier": {
        "name": "Provide One Inc.",
        "tax_id": {
            "country": "FR",
            "code": "43498927917"
        },
        "identities": [
            {
                "type": "SIRET",
                "code": "49892791768734"
            }
        ],
        "addresses": [
            {
                "num": "42",
                "street": "Calle Pradillo",
                "locality": "Madrid",
                "region": "Madrid",
                "code": "28002",
                "country": "ES"
            }
        ],
        "emails": [
            {
                "addr": "billing@example.com"
            }
        ]
    },
    "customer": {
        "name": "Sample Consumer",
        "tax_id": {
            "country": "FR",
            "code": "39356000000"
        },
        "identities": [
            {
                "type": "SIRET",
                "code": "35600000012345"
            }
        ],
        "addresses": [
            {
                "num": "1",
                "street": "Rue Sundacsakn",
                "locality": "Saint-Germain-En-Laye",
                "code": "75050",
                "country": "FR"
            }
        ],
        "emails": [
            {
                "addr": "email@sample.com"
            }
        ]
    },
    "lines": [
        {
            "i": 1,
            "quantity": "20",
            "item": {
                "name": "Development services",
                "price": "90.00",
                "unit": "h"
            },
            "sum": "1800.00",
            "discounts": [
                {
                    "reason": "Special discount",
                    "percent": "10%",
                    "amount": "180.00"
                }
            ],
            "taxes": [
                {
                    "cat": "VAT",
                    "rate": "standard"
                }
            ],
            "total": "1620.00"
        }
    ],
    "payment": {
        "advances": [
            {
                "description": "Paid in full",
                "percent": "100%",
                "amount": "1944.00"
            }
        ],
        "instructions": {
            "key": "card"
        }
    }
}

Copy and paste these documents into the GOBL builder in order to preview and verify them.

🇫🇷 Invopop resources for France


Compliance	Invoicing compliance in France Compliance timeline
Apps	France Peppol ChorusPro France
Guides	ChorusPro Guide PA Guide — Registration · Invoicing · Status · Reporting
FAQ	France FAQ
GOBL	France Tax Regime Chorus Pro Addon French Factur-X Addon
GitHub	gobl.xinvoice

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