How do I connect iDempiere to the Peppol network today?

It has a REST API (the idempiere-rest plugin) and web services; it is extended with OSGi plugins. Through SAPI-SK you send the UBL XML (Peppol BIS 3.0) and get the delivery status; the documentation and OpenAPI are public, the sandbox is free.

We also use production (MRP). Does that change anything?

No. E-invoicing concerns issued and received invoices; work orders, bills of materials and planning stay in the system. Invoices the system issues from work orders leave through Peppol like any other.

I use iDempiere by zitec. What do I have to set up?

An account with Verteco, selecting Verteco on the Financial Administration portal and an API key from the portal (API tokens menu). In iDempiere you then open the Peppol configuration window, enter the Client ID and Client Secret in the Technical section, save and run Test connection; the correct result is tokenValid = true and a participantId of 0245: with the digits of your tax ID. The exact illustrated procedure is in the vendor guide linked above.

How much does a managed custom connection cost?

A one-off fee, priced by scope (formats, number of companies, way of connecting). Write to peppol@verteco.digital or call +421 944 488 269 (Mgr. Miriama Mrkávková) and we will propose the exact procedure and price.

How much does it cost?

The service costs from €2/month excl. VAT per company ID (IČO) that sends or has the Data archive switched on (the default for new companies): receiving, sending and the archive of originals in the EU. A company with the archive off that only receives pays nothing (up to 1,000 invoices a month). During the voluntary period before the mandate of 1 January 2027 everything is free of charge.

Integrations / ERP systems / iDempiere

E-invoices for iDempiere

Connection built in by the vendor

iDempiere is an open-source ERP and CRM (GPL v2, Java, the successor of Compiere and ADempiere) with accounting, inventory and manufacturing through add-ons; in Slovakia zitec.sk delivers it as a cloud system. It has a REST API (the idempiere-rest plugin) and web services; it is extended with OSGi plugins. With us you receive e-invoices through the Peppol network right away and without touching the system (free until 31 December 2026, then from €2/month per company ID). The cloud iDempiere by zitec.sk has the connection to Verteco built in: in the Peppol configuration window you enter the Client ID and Client Secret from the portal and the Test connection button verifies the link (the vendor has the illustrated procedure in its guide). You connect your own iDempiere installation through SAPI-SK (REST, OpenAPI) or send invoices under Send by file. We are preparing a module for iDempiere: An OSGi plugin for other iDempiere installations: when a C_Invoice document is completed it builds the UBL, sends it through SAPI-SK and writes the delivery status to the document. Received e-invoices are created as drafts. We build it on concrete demand, write to us.

Vendor website: www.idempiere.org ↗Vendor guide by zitec: Peppol network registration and setup in iDempiere ↗

Direct integration guaranteed by the software vendor · 7 October 2026

zitec.sk, maker of the cloud ERP on the iDempiere platform: The zitec system has the connection to Verteco built in: in the Peppol configuration window you enter the Client ID and Client Secret from the portal and the Test connection button verifies the link and the company's Peppol identifier (0245: and the tax ID digits). The vendor published its own guide for its clients on registering with Verteco and the setup in iDempiere; our portal issues the access key, everything else is prepared in the system.

Create a free account Check your XML in the validator

The honest current state

•zitec.sk, maker of the cloud ERP on the iDempiere platform: the connection to Verteco is built into the system (the vendor guide is linked above); for other installations we are preparing a module.
•The connection through the SAPI-SK REST interface (OpenAPI, public sandbox) works today.
•Receiving e-invoices and the portal work today, independently of the system.

API documentation (SAPI-SK, OpenAPI, webhooks) →Module status in the portal →Sample UBL e-invoices (16 verified documents) →Free e-invoice validator →

The path that works today

1Activate your account: receiving e-invoices (PDF and XML by e-mail, portal, exports) works right away and without changing the system, free until 31 December 2026.
2The cloud iDempiere by zitec.sk has the connection to Verteco built in: in the Peppol configuration window you enter the Client ID and Client Secret from the portal and the Test connection button verifies the link (the vendor has the illustrated procedure in its guide). You connect your own iDempiere installation through SAPI-SK (REST, OpenAPI) or send invoices under Send by file.
3Direct connection: connect the system through the national SAPI-SK REST interface (sending, receiving and the delivery status; the OpenAPI specification and a public sandbox are available). A custom module or a managed custom connection is delivered according to scope.
4Module in preparation: An OSGi plugin for other iDempiere installations: when a C_Invoice document is completed it builds the UBL, sends it through SAPI-SK and writes the delivery status to the document. Received e-invoices are created as drafts. We build it on concrete demand, write to us.

What you have right away

✓Receiving e-invoices works right away and independently of your ERP (Peppol Box in the portal)
✓PDF and the original XML of every received invoice by e-mail and for download
✓CSV/XML export of received and sent documents for your accounting
✓Free validator: XML checked against EN 16931 / Peppol BIS 3.0 before sending
✓Sending e-invoices through the portal in a few clicks, without touching the ERP
✓Delivery receipts (MLS) and the status of every invoice in the Verteco portal
✓The tax report to the Financial Administration (TDD) is handled by our Access Point automatically

Frequently asked questions: e-invoices for iDempiere

Is there a Verteco module for iDempiere?: We are preparing it: An OSGi plugin for other iDempiere installations: when a C_Invoice document is completed it builds the UBL, sends it through SAPI-SK and writes the delivery status to the document. Received e-invoices are created as drafts. We build it on concrete demand, write to us. Until it is ready, the procedure above applies (files or SAPI-SK) and we do not claim otherwise.
How do I connect iDempiere to the Peppol network today?: It has a REST API (the idempiere-rest plugin) and web services; it is extended with OSGi plugins. Through SAPI-SK you send the UBL XML (Peppol BIS 3.0) and get the delivery status; the documentation and OpenAPI are public, the sandbox is free.
We also use production (MRP). Does that change anything?: No. E-invoicing concerns issued and received invoices; work orders, bills of materials and planning stay in the system. Invoices the system issues from work orders leave through Peppol like any other.
I use iDempiere by zitec. What do I have to set up?: An account with Verteco, selecting Verteco on the Financial Administration portal and an API key from the portal (API tokens menu). In iDempiere you then open the Peppol configuration window, enter the Client ID and Client Secret in the Technical section, save and run Test connection; the correct result is tokenValid = true and a participantId of 0245: with the digits of your tax ID. The exact illustrated procedure is in the vendor guide linked above.
How much does a managed custom connection cost?: A one-off fee, priced by scope (formats, number of companies, way of connecting). Write to peppol@verteco.digital or call +421 944 488 269 (Mgr. Miriama Mrkávková) and we will propose the exact procedure and price.
How much does it cost?: The service costs from €2/month excl. VAT per company ID (IČO) that sends or has the Data archive switched on (the default for new companies): receiving, sending and the archive of originals in the EU. A company with the archive off that only receives pays nothing (up to 1,000 invoices a month). During the voluntary period before the mandate of 1 January 2027 everything is free of charge.

Start today: selecting us on the Financial Administration portal is enough

Receiving is free · no lock-in, no hidden feesMeet your 2027 legal obligation in 2 minutes

Choose Verteco on the Financial Administration portal →On the portal, click “Pokračovať” (Continue), sign in (slovensko.sk / eID or your FS portal credentials) and confirm the selection. We handle the rest automaticallyCertified provider of the Financial Administration (EFSK000031) · no commitment · you can change providers at any time

How does the selection work? (3 steps, ~2 minutes)

1Click the button above. The official Financial Administration page “Certified provider selection” opens with Verteco pre-selected. Click “Pokračovať” (Continue).
2Sign in to the Financial Administration portal, via slovensko.sk (eID / ID card with a chip) or with your PFS credentials, and confirm the provider selection.
3Done. A sign-in e-mail arrives. We create your account, company and Peppol network registration automatically. If another provider already holds your receiving record, we do not take it over: you get the migration-code procedure, or you choose in the portal that receiving stays with them and you only send through us.
No eID? You can also sign in to the Financial Administration portal with your PFS identifier and password. Or register here with an e-mail and password, add your company manually and finish the selection later.
Your company is not offered in the “taxpayer selection” step? Only entities you are authorised for on the FS portal appear. Add the authorisation in your Personal Internet Zone (Autorizácie → Pridať autorizovaného používateľa), then finish the selection.
Detailed guide to the FS portal selection (in Slovak) →