Overview

Sellers encounter Error 8123 when they try to edit a listing whose ASIN has either been merged into another ASIN or removed from Amazon’s active catalog. The error appears during inventory updates, price changes, or content edits, and it stops the SKU from being modified. Resolving the issue quickly is essential to keep inventory accurate and avoid sales interruptions.

Key Points

• Error trigger — The message appears when a SKU is linked to an ASIN that no longer exists in its original form.
• Merged ASINs — Amazon consolidates duplicate or highly similar product pages, retiring the older ASIN and leaving any attached SKUs orphaned.
• Discontinued ASINs — Listings that violate policies or lack sufficient detail may be removed, causing the same orphan‑SKU problem.
• Catalog scope — The error cites a specific SKU; large sellers should verify whether multiple SKUs share the same retired ASIN.
• No policy penalty — Error 8123 is a catalog‑management issue, not a violation that affects account health, but it can still halt routine feed updates.

How to Fix Error 8123

1. Locate the active ASIN — Search Amazon’s catalog using the product name, brand, or UPC/EAN to find the current, live ASIN.

   • Example: A seller sees Error 8123 on SKU “ABC‑123”. A quick search for the product’s UPC reveals ASIN B07XYZ456 as the active listing.

2. Determine the relationship — Decide whether the original SKU’s product matches the active ASIN or represents a distinct item.

   • Example: The seller’s “Blue Cotton T‑Shirt, Size M” matches the active ASIN’s description, indicating a merge rather than a separate product.

3. Update internal references — If the product is the same, replace the old ASIN with the new one in all inventory management tools, spreadsheets, and feed files.

   • : The seller edits the inventory spreadsheet, swapping the retired ASIN for B07XYZ456, and re‑uploads the feed.