What do I need before the first sending from onlineERP?

An account with Verteco with an activated company (selecting the provider on the Financial Administration portal), an API key from the portal (API tokens menu) and entering it in onlineERP following the vendor guide.

Where can I test the connection without live operation?

In the test environment test.peppol.verteco.digital: its own account and its own API key (keys are separate for each environment), documents go to the Peppol test network and nothing is charged.

How much does it cost?

The connection is free. The service costs from €2/month excl. VAT per company ID (IČO) that sends or has the Data archive switched on; receiving with the archive off is free (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 / onlineERP

E-invoices for onlineERP

Connection built in by the vendor

onlineERP is a business system for stock management and invoicing with e-invoicing through the SAPI-SK interface. The connection to our certified access point is built into the program: invoices leave for the Peppol network from onlineERP and received e-invoices are loaded into it, with no files and no extra software.

Vendor website: www.onlineerp.sk ↗Vendor: e-invoicing in onlineERP ↗

Direct integration guaranteed by the software vendor · 6 November 2026

onlineERP (Ing. Zoltán Tóth): The vendor built the connection to Verteco through the SAPI-SK interface and told us on 6 November 2026 that it is finished and in operation; the vendor e-invoice page names Verteco as the access point.

Create an API key Create a free account

How it works

1Create an account on peppol.verteco.digital, add your company and confirm the selection of Verteco on the Financial Administration portal (slovensko.sk or PFS login details; it takes a few minutes and is free).
2In the portal open API tokens (/dashboard/tokens), enter a key name such as onlineERP and click Create token: the Client Id is the token ID, the Client Secret is the key starting with vpt_, shown only once.
3In onlineERP enter the Client Id and Client Secret in the e-invoice settings following the vendor guide (onlineerp.sk/efaktura). Sending and receiving then run straight from the program; the delivery status and receipts are shown in onlineERP and in the portal.

What the integration solves

✓Connection built by the vendor through the national SAPI-SK interface, no files
✓Peppol BIS Billing 3.0, the format required by Slovak law from 1 January 2027
✓The customer is checked in the Peppol network before sending (no needless errors)
✓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
✓Free test environment connected to the Peppol test network

Frequently asked questions: e-invoices for onlineERP

What do I need before the first sending from onlineERP?: An account with Verteco with an activated company (selecting the provider on the Financial Administration portal), an API key from the portal (API tokens menu) and entering it in onlineERP following the vendor guide.
Where can I test the connection without live operation?: In the test environment test.peppol.verteco.digital: its own account and its own API key (keys are separate for each environment), documents go to the Peppol test network and nothing is charged.
How much does it cost?: The connection is free. The service costs from €2/month excl. VAT per company ID (IČO) that sends or has the Data archive switched on; receiving with the archive off is free (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) →