Singapore InvoiceNow (Peppol) E-Invoicing for WooCommerce is a build-to-order plugin that ECOSIRE designs, builds, installs, and supports directly on your WordPress/WooCommerce site. It is not an instant WordPress.org or WooCommerce.com download — you buy the build, and our engineers deploy and configure it for your specific store, GST registration, and chosen IMDA-accredited Access Point.

Once live, the plugin hooks into the WooCommerce order lifecycle (via actions like woocommerce_order_status_completed and woocommerce_payment_complete) to generate a compliant Peppol BIS Billing 3.0 UBL XML document for each qualifying order. It maps your SGD line items, GST tax codes (Standard-Rated, Zero-Rated, Exempt), shipping, and rounding into the correct UBL fields, then transmits the invoice through your IMDA Access Point (C2→C3) so it reaches your customer's Access Point under the 4-corner Peppol model — extended to the IRAS 5-corner model, where the required GST data is also relayed to IRAS for InvoiceNow GST reporting.

Built for HPOS / custom order tables as well as legacy post-based orders, it stores transmission status, Peppol Participant IDs, and document references against each order. A WP-Cron worker handles retries and status polling so a transient Access Point outage never silently drops an invoice. Admins manage everything from a dedicated wp-admin settings screen: endpoint credentials, sender UEN/Peppol ID, participant lookup and validation (SMP), GST treatment defaults, and per-order resend.

Because it is build-to-order, we tailor field mappings, number formats, and tax logic to how your store actually sells — multi-rate carts, deposits, B2B vs B2C, WPML or multisite setups included. Every engagement ships with installation, a walkthrough, and a defined support window.