How to Fix Error 96006: Duplicate SKU Values in Listing Feeds
Error 96006 is triggered when the item_sku column has duplicate entries or conflicting attribute data, causing Amazon to reject the whole feed. In a 2,000‑row inventory upload, 15 duplicated SKUs stopped a seasonal promotion until the seller removed the repeats and resubmitted.
Overview
Sellers see error 96006 when Amazon’s feed engine finds the same SKU listed more than once or paired with conflicting attribute data in a single upload. The rejection stops the entire batch, delaying new product launches or inventory updates that rely on timely feed processing.
Key Points
- Duplicate SKU in one file — If the column item_sku contains the same identifier on two rows, Amazon flags the feed and discards all rows that share that SKU. For example, a spreadsheet that repeats “ABC‑123” for a t‑shirt and a coffee mug will trigger the error.
- Conflicting attributes for one SKU — Supplying two different values for the same attribute (e.g., two prices or two titles) on the same SKU also generates error 96006. A seller who uploads a price of $19.99 on one line and $24.99 on another line for SKU XYZ‑789 will see the feed rejected.
- Whole‑record skip — Amazon does not attempt a partial fix; every record that contains the duplicated or contradictory SKU is omitted from processing. Consequently, even unrelated products in the same file remain unprocessed until the issue is cleared.
- Unique SKU requirement — Each SKU must appear a single time per submission, accompanied by one consistent set of attribute values. If a seller needs separate listings, they must assign distinct SKU codes such as “SHIRT‑001” and “MUG‑001”.
- Error does not affect account health — The rejection is a technical feed problem, not a policy violation, so it does not impact performance metrics, but it can still stall sales‑critical updates.
- Early detection saves time — Using spreadsheet tools to highlight duplicates before upload can prevent hours of troubleshooting and re‑submission cycles.
How Error 96006 Is Detected and Fixed
- Identify duplicate rows — Amazon’s feed parser scans the uploaded file for repeated item_sku values; when it finds a match, it logs error 96006. A seller who accidentally copied a row while preparing a bulk update will see the duplicate flagged.
- Sort or filter by SKU — Open the flat file in Excel or Google Sheets, sort the item_sku column alphabetically, and look for adjacent identical entries. For instance, sorting a 5,000‑row inventory will group all “BLUE‑001” entries together, making repeats obvious.
Analysis & Recommendations
Why This Matters
Duplicate SKUs halt processing of all rows, delaying product visibility, price changes, and stock updates during flash sales or new‑product launches. A single 15‑SKU duplication in a 2,000‑row file can postpone a seasonal promotion, directly impacting revenue.
Key Takeaways
- Error 96006 rejects the entire batch when any SKU appears more than once or has conflicting attributes.
- In the example, 15 duplicated SKUs in a 2,000‑row file caused a complete feed rejection.
- Amazon’s feed parser logs error 96006 during the upload scan of the item_sku column.
- Using Excel’s conditional formatting or built‑in validation can highlight duplicate SKUs before upload.
Recommended Actions
- →In Seller Central, go to Inventory > Add Products via Upload, run the built‑in validation tool after sorting the item_sku column and removing dupli...
- →Apply Excel conditional formatting: Home > Conditional Formatting > Highlight Cells Rules > Duplicate Values on the item_sku column to spot repeats.
- →Implement a pre‑upload checklist: use Excel’s Remove Duplicates, then have a teammate verify the file against the master SKU list before resubmitting.
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