Overview

Sellers receive error 8606 when Amazon’s feed processor finds duplicate component SKUs mapped to the same ASIN inside a product bundle. The issue appears during bundle upload and prevents the bundle from becoming active, so fixing it quickly is essential to keep bundle listings live and inventory flowing.

Key Points

• Duplicate ASIN mapping triggers the error — If two or more component SKUs in a bundle resolve to the identical ASIN, Amazon flags the feed with error 8606 and rejects the submission.
• Quantity field replaces repeated entries — Instead of listing the same SKU multiple times, sellers should enter a single component SKU and set the quantity attribute to the required number of units (e.g., “3” for three identical items).
• Every component must point to a distinct ASIN — Amazon’s catalog rules require each bundle component to reference a unique product identifier; sharing an ASIN across components creates ambiguity in inventory and fulfillment.
• Feed must be resubmitted after correction — Once duplicate entries are removed or consolidated, the updated feed file needs to be uploaded again for Amazon to re‑validate the bundle.
• Error appears in the Feed Processing Summary — The summary report lists the exact bundle SKU and the offending component SKUs, giving sellers a precise target for correction.
• Incorrect bundles can affect downstream operations — Even if a bundle somehow passes validation, duplicated components can cause mis‑counts in inventory, shipping errors, and inaccurate sales reporting.

How to Fix Error 8606

1. Download the processing summary — Open the Feed Processing Report in Seller Central, locate the row marked with error 8606, and note the bundle SKU (e.g., BND‑12345) and the component SKUs that share the same ASIN.
2. Identify the duplicated ASIN — Cross‑reference the component SKUs against your catalog to confirm that they all map to, for example, ASIN B07XYZ1234. This step isolates the exact items causing the conflict.