Overview

Sellers who try to add items to Amazon’s Low‑Cost Store (LCS) sometimes hit Error 100644, which signals that the chosen product type isn’t permitted in the program. The block appears during the listing creation step and stops the SKU from entering the budget‑friendly storefront. Knowing why the error shows up and how to correct it is essential for anyone aiming to sell low‑price merchandise on Amazon.

Key Points

• Error 100644 stops the listing — When the system detects an ineligible product type, the SKU is rejected from the Low‑Cost Store, preventing any sales through that channel.
• Only a handful of categories qualify — Eligible groups include fashion apparel (e.g., basic tees), home décor items (e.g., decorative pillows), beauty accessories (e.g., makeup brushes), and similar non‑regulated products.
• Restricted categories are excluded — Food, baby supplies, pet items, live organisms, flammable goods, and products that need special handling cannot be listed in LCS.
• Cross‑border compliance is not supported — Items that require additional import or safety documentation, such as certain electronics or chemicals, trigger the error because LCS does not process those paperwork requirements.
• Wrong product type selection is a common cause — Sellers often pick a generic “Miscellaneous” type or a category that looks similar but is actually disallowed; correcting the product type usually clears the error.
• The program aims for streamlined fulfillment — By limiting listings to low‑risk, non‑hazardous items, Amazon can keep handling costs low and maintain a consistent buyer experience.

How the Low‑Cost Store Eligibility Check Works

1. Product type validation — When a seller submits a new SKU, the system compares the selected product type against an internal whitelist. Example: A seller lists a cotton tote bag as “Apparel – Accessories”; the system finds it on the whitelist and proceeds.
2. Restricted‑category filter — The listing is scanned for any attributes that match prohibited groups.