This is a build-to-order plugin, not an instant download. After we confirm your requirements — operating countries, tax classes, B2B/B2G scope, and your chosen Access Point — typical delivery is around one working week. ECOSIRE installs and configures the plugin directly on your WordPress site (staging first where available), validates real test invoices end-to-end, then moves it to production. You receive working software on your own site, not a zip to figure out yourself.

Every build includes a defined post-launch support window covering bug fixes and patches for changes to the Peppol BIS / EN 16931 rule sets and WooCommerce/HPOS compatibility. We monitor for breaking schema updates and ship corrective patches. After the initial window, optional ongoing support and update plans are available so your e-invoicing keeps passing validation as the standards evolve.

Yes. ECOSIRE builds the WooCommerce side — invoice generation, UBL validation, the admin workflow, and transmission logic — and wires it to a certified Access Point of your choice. We do not act as the Access Point ourselves; you contract one (we can advise on options), and we connect the plugin to your credentials and Participant Identifier during setup.

Yes. The plugin is built for WooCommerce High-Performance Order Storage (custom order tables) and also supports legacy post-meta order storage. Because it works through standard WooCommerce hooks, the REST API, and WP-Cron rather than overwriting core files, it coexists cleanly with your theme and other plugins, and we test it against your actual stack before go-live.

It produces technically compliant Peppol BIS 3.0 / EN 16931 documents and delivers them correctly — that is the hard engineering part. But final legal compliance depends on your specific VAT registrations, country rules, and accounting setup, which remains your accountant's or tax advisor's responsibility. We map your tax classes accurately and validate the output, and we recommend a compliance sign-off before going live.