Allegro Integration for WooCommerce is a build-to-order plugin that connects your WooCommerce catalog to Allegro, Poland's largest marketplace, so you manage one inventory instead of two. This is not an instant WordPress.org download. ECOSIRE builds the plugin against the Allegro REST API and the WooCommerce REST API, installs it on your WordPress site, configures it for your catalog, and supports it afterward.

The plugin authenticates to Allegro using OAuth 2.0 (device flow plus refresh-token rotation) and stores credentials securely in wp_options, never in code. It maps each WooCommerce product (and variation) to an Allegro offer, so a price or stock change on either side propagates to the other. Quantity sync on sale is the core safeguard: when an item sells on Allegro or in WooCommerce, the remaining stock is decremented on both, preventing oversells across channels.

Orders placed on Allegro are imported as native WooCommerce orders — fully HPOS-compatible (custom order tables) — with buyer details, line items, and shipping mapped to your existing fulfillment workflow. Allegro category and parameter mapping (the required attributes Allegro enforces per category) is handled through a dedicated wp-admin settings screen, and bulk offer creation and updates let you publish or re-price hundreds of listings in one pass.

Sync runs on a schedule via WP-Cron (or a real system cron for reliability under load), with WordPress action and filter hooks exposed so your developers can extend mappings, override SKU logic, or hook into shipping rules. Built to honor multi-currency (PLN) and, where needed, WPML for multilingual catalogs.