Error message:

The provided SKU [SKU] conflicts with the Amazon catalogue. The standard product ID value(s) provided for this SKU correspond to the ASIN; however, some information is in conflict with the Amazon catalogue. 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 has this ASIN, modify these attributes to reflect the Amazon catalogue values. If your product has a different ASIN, check if the standard product ID value(s) are correct.

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 any of these ASINs.

How to solve and prevent error 8542:

1. Check to make sure that the Product ID you have provided is correct. If it is incorrect, enter the correct product ID in your file and resubmit.
2. 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.

The following help page has a little more information about this error: Error 8542.