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Introduction

Before a company can issue electronic tickets (documento commerciale/scontrino elettronico) in Italy, they must be registered as a supplier in Invopop with the credentials they use on the Agenzia delle Entrate (AdE) portal, so that receipts can be relayed to the AdE on their behalf. In this guide you’ll learn how to register a supplier using the Smart Receipts Italy app. Once a supplier is registered, continue with the companion guide: Italy: Issuing receipts.

Prerequisites

To register a supplier for Smart Receipts, you will need:
  • An Italian tax ID (Partita IVA) for the supplier.
  • The supplier’s codice fiscale.
  • The supplier’s AdE portal credentials (password and PIN).

Setup

There are three key processes to prepare:
  1. Create a supplier post-registration workflow.
  2. Connect the Italian Smart Receipts app.
  3. Configure a supplier registration workflow.
These instructions work in both sandbox and live environments. The only differences are in supplier data and registration details when using test environments.
Follow these steps in the Invopop Console.
1

Create Supplier post-registration workflow

Smart Receipts supplier post-registration workflow

This workflow marks suppliers as Registered. You will select this workflow in the Italian Smart Receipts app configuration later.
2

Connect the Italian Smart Receipts app

  1. Navigate to ConfigurationApps.
  2. Find Italian Smart Receipts in the app discovery list.
  3. Click Connect to activate.
Smart Receipts App
Click the Configure button on the app, and choose the “Post-registration workflow” we created in the previous step.Click the Save button.
3

Configure the supplier registration workflow

Smart receipts supplier registration workflow

This workflow will issue a registration request for a supplier to complete in order to issue receipts through the AdE.

Register a supplier

You can register suppliers either manually via the Invopop Console or programmatically via the API. The process is essentially the same. We’ll demonstrate the manual process first, followed by the API flow.
Suppliers in Italy using this system must generate and provide their AdE credentials so that invoices can be processed on their behalf. This is not an automated service and can only be performed manually by a representative of the supplier.
  1. Navigate to PartiesSuppliers in the sidebar
  2. Click + New Supplier
  3. In the editor, enter the supplier details
Here’s an example using test data (only valid for sandbox environments):
You may notice that we included the Italian fiscal code in the supplier, this is not necessary at the moment but will be asked for, if not provided, during the registration process.
Tap Build, ensure there are no errors, and click Save. We should now see the document. Find and click the Select Workflow button. Select the Register Supplier workflow created during setup, and click Run Workflow. The execution should be successful, and the silo entry will now be in the Processing state. Tap the Meta tab to see the registration link:
Supplier Registration Link
You can access the registration link via the API by fetching the silo entry and reading the meta row where the key is set to registration-link.
Tap the registration link and a new browser window will be presented with a form to upload the credentials for the supplier. Note that this form can be shared directly with the supplier if required.
Issuer Registration Form
The details from this form are sent securely to our local partner who will be responsible for sending them to the AdE. We will update the supplier with the provided codice fiscale for future use but will not store any type of credentials.
These credentials will expire every 90 days. You must first update your credentials on the official AdE web portal, then enter these new credentials in our registration form. You can use the same registration link to update your credentials.
At this point, you’re ready to start issuing receipts on behalf of the supplier. Head over to the Smart Receipts issuing guide to continue.

Register a supplier via the API

The whole registration process can also be completed programmatically. This is useful in white-label setups where you want to collect the supplier’s credentials inside your own product instead of sharing Invopop’s hosted form.
1

Upload the supplier

Use the Create an entry endpoint to upload the supplier party, like the example in the previous section. The party must include the company name and an Italian tax_id (Partita IVA). Optionally include the it-fiscal-code identity and an email address to pre-fill the registration form.
2

Run the registration workflow

Send the supplier to the registration workflow using the Create a job endpoint with the IDs of the silo entry and the supplier registration workflow created during setup.
3

Fetch the registration link

Fetch the silo entry and read the meta row where the key is registration-link. The link_url will look like this:
The URL is signed: the exp and sig query parameters are validated on every request, so always use the link_url exactly as returned. Requests with missing or modified parameters are rejected.
4

Submit the credentials

Opening the link in a browser presents the hosted registration form. To submit the credentials from your own product instead, send a PUT request to the link_url (keeping the query parameters intact) with the following JSON body:
A 200 response means the registration is complete and the post-registration workflow configured in the app will be launched. Errors are returned as {"error": "<message>"} with a 400 status for client errors (invalid or expired link, missing fields) or 500 for server errors.The same endpoint can be called again with the same link to update the supplier’s credentials when they expire.

FAQ

Provide the supplier’s Partita IVA and Codice Fiscale (where different) in their party configuration. No certificate upload is needed — Invopop signs and submits to SDI as the supplier’s intermediary.
No supplier certificates are required. Invopop signs FatturaPA submissions with its own Agenzia delle Entrate-recognized intermediary credentials. Only the Partita IVA and routing metadata are stored.
Run the Smart Receipts Register Supplier workflow with the supplier’s Partita IVA. Invopop registers the merchant with Agenzia delle Entrate’s AdE CF service so issuance can begin immediately.
None at the supplier level. Invopop authenticates to AdE CF via its intermediary credentials. The supplier’s Partita IVA is the only routing identifier needed.
More available in our Italy FAQ section

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