This error is commonly referred to as a "single matching error". It may occur when the Product ID such as UPC, EAN, JAN, ISBN, and so on or product identifier such as manufacturer part number, model number, SKU, and so on, which you submit at the time of creating a new SKU matches with or corresponds to the Product ID or product identifier details of an existing ASIN on Amazon. This is called single matching error because one or more unique Product ID, or the product identifier information matches to a single existing ASIN. This error may be preventing you from successfully creating a new ASIN on Amazon.
" The provided [SKU] conflicts with an existing seller listing on Amazon.in. . The Standard Product ID value(s) provided for this SKU corresponds to the ASIN [ASIN]; however, some information is in conflict with the details of ASIN [ASIN]. The conflicting attribute values(s) are Brand (Merchant: [MERCHANT_VALUE] / Amazon: [AMAZON_VALUE]). If your product is the same as this ASIN, modify these attributes to reflect the correct details. If your product is different from this ASIN then check if the Standard Product ID value(s) are correct."
It is your responsibility to check and confirm if the product details of the existing ASIN, and your modified attributes, are correct, accurate and fulfils the requirements of applicable laws. If the ASIN matches what you are trying to list but the information on existing ASIN is incorrect or insufficient, contact Selling Partner Support to assist you in fixing the incorrect information.
This error message comes up in the event the details of the ASIN you are trying to create matches with the unique details of the existing seller listing or ASIN on Amazon, and thereby prevents creating duplicate ASINs for the same product.
Follow these steps if you get the error in the given scenarios:
Scenarios | Steps to follow |
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While creating new listing |
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While updating an existing listing |
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A common cause of this error may be the result of manufacturers of products reusing UPCs or EANs. For example, in apparel, barcodes are sometimes reused after three years. Ensure that you are matching your product to the correct ASIN. You may visit GS1 website to validate the EAN codes, since they are responsible for issuing barcodes. If you get a Product ID code from any other unauthentic source, it can lead to a matching error.
Use exact values for part numbers or model numbers instead of the general practice of using the SKU values for part number or model number. In case of handmade products, where part numbers are less likely to be available, it is suggested that unique SKU values are used rather than generic values like "abc".