Integrations / ERP systems / webERP

E-invoices for webERP
Open API · customwebERP is an open-source web ERP (GPL v2, PHP and MySQL) with accounting, inventory, bills of materials and work orders. It has an XML-RPC API for customers, items and documents. 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). Export issued invoices to CSV or XLSX following our template and send them through Bulk send; received invoices come by e-mail with PDF and XML and are in the portal. We do not have a ready-made module yet; a direct connection is delivered as a managed custom connection.
Vendor website: www.weberp.org ↗
The honest current state
- •There is no ready-made module; a direct connection is delivered as custom work.
- •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.
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.
- 2Export issued invoices to CSV or XLSX following our template and send them through Bulk send; received invoices come by e-mail with PDF and XML and are in the portal.
- 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.
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 webERP
- Is there a Verteco module for webERP?
- We do not have a ready-made module yet and we do not claim otherwise. Today receiving works through the portal and e-mail, sending with files through the portal or through the SAPI-SK REST interface; a direct connection is delivered as a managed custom connection.
- How do I connect webERP to the Peppol network today?
- It has an XML-RPC API for customers, items and documents. 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.
- 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
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) →
Related: Peppol company check · e-invoicing guide 2027 · price list · all integrations