Overview

Error 100543 is a listing error that Amazon sellers encounter when attempting to list a product in a category or product type that is restricted or prohibited on a particular Amazon marketplace. This error commonly surfaces when sellers expand their operations to additional Amazon storefronts, such as Amazon.in (India), and discover that certain product categories permitted on one marketplace may not be allowed on another. Understanding this error and how to resolve it quickly is essential for sellers managing multi-marketplace catalogs.

Key Points / What Sellers Need to Know

• Marketplace-specific restrictions — Not every product category available on Amazon.com is permitted on other Amazon marketplaces. Each regional storefront maintains its own approved categories list based on local regulations and business policies.
• Regulatory requirements vary by region — Some product types fall under special regulatory frameworks in certain countries that Amazon does not yet support on that marketplace, even if the product itself is perfectly legal to sell elsewhere.
• Your other listings are unaffected — Receiving Error 100543 on one marketplace does not impact your ability to sell the same product on other Amazon storefronts where the category is approved.
• Resolution requires action — Amazon will not automatically fix this error. Sellers must either edit the listing to remove the marketplace-specific offer or delete the SKU for that storefront entirely.
• Category approval lists are updated periodically — Categories that are restricted today may become available in the future as Amazon expands its supported product types on each marketplace.

What Causes Error 100543

This error is triggered for two primary reasons. First, the seller has attempted to list a product in a category or product type that is explicitly restricted or prohibited on the target Amazon marketplace. This often happens when sellers use bulk listing tools or automated listing software that pushes offers to multiple marketplaces simultaneously without checking per-marketplace category eligibility. Second, the product type may fall under special regulatory requirements specific to that marketplace's country or region, and Amazon has not yet enabled support for those regulatory frameworks on that storefront. In both cases, Amazon blocks the listing to ensure compliance with local rules and its own marketplace policies.