Error Code 8542 | The SKU data provided conflicts with the Amazon catalog

Encountering Error Code 8542 means the SKU data provided for your product conflicts with an existing Amazon listing. This typically occurs in two scenarios:

You’ve already listed a product using the same UPC/EAN/GTIN.
Another seller has illegally used your barcode.

To resolve this:

Use a different UPC barcode from your inventory/order.
If illegal use is detected, reach out to Amazon Support with relevant details for resolution.

Note: Any UPC you purchase from UPCs.com is unique and owned solely by your company. It is not issued to anyone else, nor are any codes recycled. In rare cases where there is theft of your UPC, please let us know immediately and we can reissue your UPC.

If you’ve ordered a UPC from us, please contact us with your order # and the UPC in question -we’re here to help.