Billing Panel Addons

If you run a billing or hosting control panel, you don’t need to integrate with the REST API directly. We ship ready-to-install addons that plug Peppol e-invoicing into the panels most used by hosting and services businesses.

Where to download

All addons are available as a ZIP download from your Invoro dashboard: Integrations → Browse addons. Each ZIP includes the addon source, install instructions, and changelog.

Supported panels

WHMCS

Automatic Peppol dispatch on invoice creation or payment. Supports credit notes, intra-EU reverse charge, and VAT-to-Peppol derivation.

Compatible with WHMCS 8.x.

HostBill

Send HostBill invoices to Peppol automatically. Hooks into the invoice lifecycle with configurable auto-send.

Blesta

Peppol dispatch from Blesta’s billing engine. Credit-note-aware, tax-category detection, VAT lookup.

FOSSBilling

Open-source billing, Peppol-enabled. Same feature set as the commercial panel addons.

WISECP

Peppol dispatch for WISECP-powered hosting businesses.

What the addons do

• Auto-send on payment or creation - dispatch invoices to Peppol the moment they’re finalized
• Credit note handling - refunds and adjustments are mapped to UBL credit notes (type 381)
• Peppol participant lookup - verify that your customer is on the Peppol network before sending
• VAT-to-Peppol derivation - if a customer has a VAT number but no explicit Peppol ID, we derive one using the official EAS scheme mapping
• Tax-category inference - standard-rated (S), intra-EU reverse-charge (K), exports (G), zero-rated (Z)
• Customer Peppol ID management - add a “Peppol ID” custom field to each customer; the addon reads it automatically

Installation

Every addon ships with a full INSTALL_INSTRUCTIONS.md inside the ZIP. High-level steps are the same across panels:

1. Download the ZIP from the Integrations page in the Invoro app
2. Upload / extract to the appropriate directory in your billing panel (varies per panel - see the included docs)
3. Activate the module and paste your Invoro API key
4. Optionally add a “Peppol ID” custom field to your customer profile
5. Configure auto-send rules and test mode

All configuration options, hook behaviour, credit-note rules, and troubleshooting guidance are documented in the ZIP itself. Treat this page as an index; the canonical install guide lives next to the code.

Not using a supported panel?

If you’re on a panel that isn’t listed here, or you’re building from scratch, use the Invoice API directly. The REST API provides the same capabilities as the addons; the addons are just convenience wrappers.

You may also be interested in the Stripe webhook integration (configurable from the app without code) if your billing runs through Stripe.