Sell on Amazon Sign in
This article applies to selling in: Canada

Error 8542

What causes error 8542?

This error is commonly referred as “multiple matching error” and occurs when your Product ID (UPC, EAN, JAN, ISBN, etc.) is currently associated with two or more ASINs, but the other attributes you have provided in your inventory template (title, brand, colour, size, etc.) do not match with any of these ASINs.

Error message:

The provided SKU, [SKU], conflicts with the Amazon catalogue. The standard product ID value(s) provided for this SKU correspond(s) to the ASIN [ASIN]; however, some information is in conflict with the Amazon catalogue. The following are conflicting attribute value(s): Item package quantity (merchant: [merchant value] / Amazon: [Amazon value]) or part number (merchant: [merchant value]/ Amazon: [Amazon value]). If your product is this ASIN, modify these attributes to reflect Amazon catalogue values. If your product is different from this ASIN, check if the standard product ID value(s) are correct.

SKU [SKU], (ASIN [ASIN1], ([ATTRIBUTE1] merchant: [MERCHANT_VALUE] / Amazon: [AMAZON_VALUE], [ATTRIBUTE2] merchant: [MERCHANT_VALUE] / Amazon: [AMAZON_VALUE], ...)), (ASIN [ASIN2], ([ATTRIBUTE1] merchant: [MERCHANT_VALUE] / Amazon: [AMAZON_VALUE], [ATTRIBUTE2] merchant: [MERCHANT_VALUE] / Amazon: [AMAZON_VALUE], ...)), .... The product_id submitted with [SKU] corresponds to multiple ASINs [ASIN1, ASIN2, ...], but we are unable to determine which one. Please update your information to best match the appropriate ASIN. If your product is different than any ASIN, please check the product_id. If it is correct, contact Selling Partner Support for proper resolution. Feed ID: [FEEDID]. For details, see

How to solve and prevent error 8542:

  • Check to make sure that the product ID you have provided is correct. If it’s incorrect, enter the correct product ID in your file and resubmit.
  • If you have provided the correct product ID, follow these steps:
    • Update the attributes in your file to match those in the catalogue (these attributes are provided in the error report) and resubmit your file; OR
    • Replace your entry under the Product ID and Product ID type column with the ASIN provided in the error report and resubmit your file.

If the information in the Amazon catalogue for this product appears to be incorrect, contact Selling Partner Support.

Note: A common cause of this error is the result of manufacturers reusing UPCs or EANs; for example, in apparel, barcodes are sometimes reused after three years. Ensure you are matching your product to the correct ASIN.
Sign in to use the tool and get personalized help (desktop browser required). Sign in

Reach Hundreds of Millions of Customers

Start Selling on Amazon

© 1999-2022,, Inc. or its affiliates