Allegro is Poland's dominant marketplace — over 20 million active buyers — yet Shopify has no native Allegro channel and the off-the-shelf options rarely handle Allegro's strict category parameters, PLN pricing, and VAT rules the way Polish and CEE sellers actually need.

The Allegro Marketplace Connector for Shopify is a build-to-order app: ECOSIRE builds it against your store, installs it, and supports it. This is not an instant App Store download. After purchase we scope your catalog, Allegro account, and fulfillment model, then deliver a connector tailored to your products.

What it does. It pushes your Shopify products to Allegro in bulk, mapping each product to the correct Allegro category and required parameters (brand, EAN/GTIN, size, condition). It keeps inventory and price in sync using Shopify Admin GraphQL API reads and webhooks (products/update, inventory_levels/update, orders/create) so a sale on either channel adjusts available stock across your multi-location inventory. Allegro orders are imported into Shopify as native orders — preserving buyer details, line items, and shipping — so fulfillment, invoicing, and reporting stay in one place.

It handles the things that break generic tools: PLN pricing with configurable margin/rounding rules, VAT rate handling for Polish tax invoicing, and Allegro Smart! eligibility so qualifying offers display the Smart! badge. Mapping state and external Allegro offer IDs are stored in Shopify metafields, and the Allegro connection uses OAuth with token refresh handled server-side.

You get a connector that fits your catalog and your accounting — not a one-size-fits-all listing tool. Pricing is a one-time build fee of $299; ongoing Allegro API changes and support are covered under a maintenance arrangement described below.