How to Fix Amazon Error 100980: Product ID Conflicts When Listing
Explains Amazon Error 100980, which occurs when a submitted product barcode conflicts with an existing ASIN. Covers causes, resolution steps, required documentation, and offer-only listing workarounds.
Overview
Error 100980 is a common listing error that Amazon sellers encounter when the product identifier they submit — whether a GTIN, UPC, EAN, or JAN — already matches an existing ASIN in Amazon's catalog but with conflicting product information. Understanding how to diagnose and resolve this error is essential for sellers who need to get their products listed quickly and avoid unnecessary delays.
Key Points / What Sellers Need to Know
- Product ID Already Linked — This error means the barcode you submitted is already associated with a different product in Amazon's catalog, and the details you provided don't match what's on file.
- Manufacturers Sometimes Reuse Barcodes — A frequent cause of this error is that manufacturers, especially in categories like apparel, may reuse UPC or EAN codes after a few years, leading to conflicts with older catalog entries.
- Proof of Ownership May Be Required — To resolve the dispute, Amazon typically asks for documentation such as a GS1 certificate or a product image that clearly shows the GTIN value.
- Brand Registry Helps — If you are the brand owner, having an active Brand Registry account can streamline the resolution process.
- Offer-Only Listing Is an Alternative — If you simply want to add an offer to an existing ASIN without modifying product data, you can bypass this error entirely by using offer-only listing methods.
What Causes Error 100980
This error is triggered when a seller submits a product listing with a barcode that Amazon's system recognizes as belonging to a different product. The catalog already has an ASIN linked to that barcode, and the product details the seller is providing — such as title, brand, or category — don't align with what Amazon has recorded. This mismatch creates a conflict that prevents the listing from going through. It's worth noting that Amazon checks certain attributes globally across all regional stores, not just the specific marketplace where you're submitting. This means a conflict originating in one marketplace can block your listing in another, and error messages may even appear in a different language if the conflicting data was entered in a different regional store.
Analysis & Recommendations
Why This Matters
Listing errors directly delay product launches and revenue. Knowing how to quickly resolve Error 100980 helps sellers avoid prolonged back-and-forth with Seller Support and get their products live faster.
Key Takeaways
- Error 100980 means your barcode is already linked to a different ASIN with conflicting product details
- Barcode reuse by manufacturers, especially in apparel, is a common cause of this error
- Amazon checks product attributes globally across all marketplaces, so conflicts can span regions
- Offer-only listing methods can bypass this error if you just want to sell on an existing ASIN
Recommended Actions
- →Keep GS1 certificates and manufacturer documentation organized so you can quickly submit proof of ownership when disputes arise
- →Use offer-only listing feeds or APIs when adding offers to existing ASINs to avoid triggering product data conflicts
- →Check listings across all regional marketplaces if you receive an error message in an unexpected language
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