ARCA Supplier onboarding

Introduction

To issue invoices in Argentina through ARCA, each supplier must generate a digital certificate from the ARCA website and upload it to Invopop. This guide walks you through the complete registration process.

-	Sandbox	Live
Supplier	Real company required	Real company required
Certificates	ARCA sandbox certificate	ARCA production certificate
Punto de venta	Any number can be used	Must be registered in ARCA before use

Setup

Connect the Argentina app

Go to Configuration → Apps in the Console.
Find Argentina in the app list.
Click Connect to activate the app.

Create a supplier registration workflow

Create a new workflow for registering suppliers. Start with the template below:

Template
Code
Build from scratch

ARCA supplier registration workflow

This workflow will issue a registration request for a supplier to complete.

Copy and paste into a new Empty Party workflow code view.

Example Register in ARCA workflow

{
    "name": "Register in ARCA",
    "description": "Register supplier to issue invoices in ARCA",
    "schema": "org/party",
    "steps": [
        {
            "id": "12e637b0-f1fe-11f0-9dd9-c3ebff709d81",
            "name": "Set State",
            "provider": "silo.state",
            "summary": "Set state to `processing`{.state .processing}",
            "config": {
                "state": "processing"
            }
        },
        {
            "id": "fc109350-f1fd-11f0-9dd9-c3ebff709d81",
            "name": "Register supplier in ARCA",
            "provider": "gov-ar.register"
        },
        {
            "id": "ff7d3160-f1fd-11f0-9dd9-c3ebff709d81",
            "name": "Wait for Authorization via ARCA",
            "provider": "gov-ar.wait.authorization"
        },
        {
            "id": "0dc4bdb0-f1fe-11f0-9dd9-c3ebff709d81",
            "name": "Set State",
            "provider": "silo.state",
            "summary": "Set state to `registered`{.state .registered}",
            "config": {
                "state": "registered"
            }
        }
    ],
    "rescue": [
        {
            "id": "f1be4e50-f203-11f0-b1d8-c7bdc0d915b1",
            "name": "Set State",
            "provider": "silo.state",
            "summary": "Set state to `error`{.state .error}",
            "config": {
                "state": "error"
            }
        }
    ]
}

Before starting, review the workflows guide to understand the general setup process.In Console, create a new workflow and choose Empty Party workflow as the base. Then name the workflow with a descriptive label such as “Register in ARCA”.The new workflow will need to perform the following steps:

Set State — select “Processing”.
Register supplier in ARCA - will generate a unique URL and add it into a url key value within the meta property. Optionally, add a webhook or email step after this step to notify the supplier.
Wait for ARCA authorization - waits for the supplier to complete the registration process in the ARCA webpage.
Set State — select “Registered”.

Add any additional steps you may need, and save the new workflow.

Register a supplier

The registration process is the same whether you’re issuing invoices on behalf of third parties (white label) or under your own company name.

Create a supplier entry

Via API
Use the Create an entry endpoint to create a new supplier party. The required fields are:

name - company name
tax_id - tax identification number

Set the folder parameter to suppliers so the entry appears in the suppliers section. The entry will have an Empty status initially.Via Console
Navigate to Parties > Suppliers and click on + New supplier. The following json code will appear in the editor:

{
  "$schema": "https://gobl.org/draft-0/org/party",
  "name": "", // Name of the company or individual
  "tax_id": {
      "code": "", // 11 digit CUIT
      "country": "" // "AR"
  }
}

Fill in the necessary information and click on Build and then Save.

Run the registration workflow

Via API
Use the Create a job endpoint with the following payload:

// POST https://api.invopop.com/transform/v1/jobs
{
  "workflow_id": "<uuid>",
  "silo_entry_id": "<uuid>"
}

You can obtain the workflow_id from the workflows list, and the silo_entry_id from the Meta tab in the supplier entry.Via Console
Open the supplier entry, click Run workflow, and select Register in ARCA.The supplier’s status will change to Processing while awaiting registration completion.

Access the registration wizard

Your own company
In the Console, open the supplier entry and navigate to the Meta tab. Click on gov-ar.invopop.com to launch the registration wizard.

Third-party companies
To send the registration link to your customer, add a webhook step before Wait for ARCA Authorization.The webhook payload includes the siloEntryId. Use the Fetch an Entry endpoint to retrieve the full entry, including the meta object containing the registration link.

Example webhook response

data: {
  "meta": [
    {
      "id": "...",
      "created_at": "2025-11-05T15:10:28.132Z",
      "updated_at": "2025-11-14T15:56:53.727Z",
      "owner_id": "...",
      "entry_id": "...",
      "src": "gov-ar",
      "key": "link",
      "ref": "EgDeG3pDBDe",
      "link_url": "https://gov-ar.invopop.com/reg/EgDeG3pDBDe",
      "link_scope": "public",
      "indexed": true,
      "shared": true
    }
  ]
}

Send the link_url to your customer to complete their registration.

Complete the registration wizard

The wizard will guide the user to create a certificate in ARCA’s portal and upload it to Invopop. The steps differ between sandbox and production. For your convenience, we provide guides in Spanish which you can share with your customers or adapt to your own needs:

Sandbox: ARCA certificate wizard (in Spanish)
Production: ARCA certificate wizard (in Spanish)

Once you’ve successfully uploaded and validated the certificate, the supplier is ready to issue invoices.

Point of sales (Punto de venta)

In Invopop, the point of sale is specified in the series field of the invoice. Once the registration process is complete, in sandbox you can use any point of sale number, while production requires registering each point of sale in ARCA before using it. The registration process varies depending on your tax classification:

Monotributista: A simplified tax regime for small businesses and freelancers in Argentina
Registered taxpayer (Responsable Inscripto): Standard tax regime for companies registered for VAT

Follow these steps to register a point of sale in production:

Navigate to point of sale administration

In ARCA, go to Administración de puntos de venta y domicilios (Point of Sale and Address Administration).

Administracion de puntos de venta y domicilios

Select A/B/M de puntos de venta, then click Agregar nuevo punto de venta (Add new point of sale). Choose the appropriate option for your tax classification:For monotributista: Select “Factura electronica - Monotributo - Web Service”

For registered taxpayers: Select “RECE para aplicativo y Web Service”

FAQ

Do I need to upload digital certificates to Invopop?

Yes, to issue invoices through ARCA’s web services, you need to upload your CSD (Certificado de Sello Digital) to Invopop. This certificate is issued by ARCA and is used to authenticate your requests to their system.The registration process involves:

Generating a certificate signing request (CSR) with ARCA
Downloading the certificate and private key
Uploading them to Invopop through the supplier registration flow

See our ARCA Supplier Onboarding guide for detailed instructions.

What information is required to register a supplier?

To register a supplier for ARCA invoicing, you need:Company Information:

Legal name (Razón Social)
CUIT (tax ID)
Fiscal address
Economic activity code
Tax classification (Responsable Inscripto or Monotributista)

Digital Certificates:

CSD certificate (.crt file)
Private key (.key file)
Key password (if applicable)

See our ARCA Supplier Onboarding guide for detailed registration instructions.

How long does supplier registration take?

The supplier registration process typically takes a few minutes once the supplier has their digital certificates ready. The steps are:

Generate a registration link in Invopop
Supplier uploads their certificate and key
System validates the credentials with ARCA
Registration is complete

The longest part is usually obtaining the digital certificate from ARCA, which can take a few days if the supplier hasn’t done it before.

Can I register multiple puntos de venta for one supplier?

Yes, a single supplier can have multiple puntos de venta. Each punto de venta operates independently with its own sequential numbering for each invoice type.When registering a supplier, you specify which punto de venta to use. You must register each punto de venta with ARCA in production before using it to issue invoices.

What happens if a supplier's certificate expires?

Digital certificates issued by ARCA have an expiration date. When a certificate is about to expire, the supplier must generate a new one through ARCA’s portal and upload it to Invopop.To update an expired certificate:

Obtain a new certificate from ARCA
Use the supplier registration workflow to upload the new certificate
The new certificate will replace the old one

It’s recommended to renew certificates before they expire to avoid disruption to your invoicing process.

Does Invopop support white-label invoicing in Argentina?

Yes, Invopop supports white-label (B2B2B) operations in Argentina. This means you can issue invoices on behalf of your clients using their CUIT and digital certificates.This is particularly useful for platforms and software providers who want to offer invoicing services to their customers without requiring them to integrate directly with ARCA.Each supplier (your client) needs to complete the registration process with their own certificates, and then you can issue invoices on their behalf through Invopop’s workflows.

What certificates are required to integrate with ARCA?

A CSD (Certificado de Sello Digital) issued by ARCA, consisting of a .crt X.509 certificate and the matching .key private key. Both files are uploaded together; the certificate must be valid (not expired, not revoked) and authorized for the WSFE web service.

How do I onboard a new supplier in Argentina?

Generate a registration link via the ARCA Register Supplier workflow, send it to the supplier, and have them upload their CSD certificate and private key. Once validated, the supplier is ready to issue. See the ARCA Supplier Onboarding guide.

How are supplier credentials stored in Invopop for Argentina?

The CSD certificate (.crt) and private key (.key) are stored encrypted. Invopop only uses them to authenticate WSFE requests on the supplier’s behalf and never returns the key in API responses.

More available in our Argentina FAQ section

🇦🇷 Invopop resources for Argentina


Compliance	Invoicing compliance in Argentina Compliance timeline
Apps	Argentina
Guides	ARCA Supplier onboarding ARCA Invoices
GOBL	Argentina Tax Regime Argentina ARCA Addon

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Networks

Countries

Set-up

GOBL

Apps

API

Features

ARCA Supplier onboarding

Introduction

Setup

ARCA supplier registration workflow

Register a supplier

Complete the registration wizard

Point of sales (Punto de venta)

FAQ

Participate in our community

Networks

Countries

Set-up

GOBL

Apps

API

Features

Documentation Index

​Introduction

​Setup

ARCA supplier registration workflow

​Register a supplier

​Complete the registration wizard

​Point of sales (Punto de venta)

​FAQ

Participate in our community

Introduction

Setup

Register a supplier

Complete the registration wizard

Point of sales (Punto de venta)

FAQ