Overview

Amazon has upgraded the Easy Ship API (version 2022‑03‑23) to recognize the Netherlands (NL) and Poland (PL) marketplaces. The change is live immediately, enabling developers and sellers to handle Easy Ship orders from these two high‑growth European markets through API calls instead of the Seller Central UI. Sellers with operations in NL or PL need to adjust their integrations now to stay competitive and avoid manual processing delays.

Key Points

• New marketplace IDs — The API now accepts “A2NL” for the Netherlands and “A1C3SO” for Poland, eliminating the previous “Marketplace not supported” error.
• Locale‑aware order data — GET /orders/v0 returns Dutch postcodes such as 1012 AB and Polish street addresses like ul. Marszałkowska 12/34, matching local formatting rules.
• Country‑specific carriers — The POST /shipping/v0/shipments endpoint now supports carrier codes POSTNL and POCZTA_POLSKA, allowing direct rate quotes and label creation for each market.
• Unchanged authentication — Existing AWS Signature V4 credentials remain valid; the only addition is the two new MarketplaceId values.
• Backward‑compatible versioning — The update is delivered under the same API version, so integrations for other regions continue to work without modification.
• Documentation update — Amazon’s developer portal now lists NL and PL under “Supported Easy Ship marketplaces” and provides sample payloads that illustrate the new address validation rules.

How Easy Ship API Works

1. Authenticate the request — Sign the HTTP call with AWS Signature V4; set MarketplaceId to “A2NL” for a Dutch order or “A1C3SO” for a Polish order, then receive a temporary token for subsequent calls.
2. Retrieve pending Easy Ship orders — Issue GET /orders/v0 with the appropriate marketplace filter; the response includes a JSON array where each order’s shippingSpeedCategory equals “EasyShip” and the buyer address follows local conventions (e.g., Dutch postcode 1012 AB).