Error message:
“The SKU data provided is different from what’s already in the Amazon catalog.”
This usually means the GTIN (barcode number) you entered is already linked to an existing product in Amazon’s catalog.
Common Reasons for Error 8541
- The GTIN has already been used by you
Check whether this barcode has previously been assigned to another Amazon listing.
Remember: each product variation (size, colour, flavour, design, etc.) requires its own unique GTIN.
- Another seller is using the same GTIN
In some cases, another seller may have already attached a matching barcode to a product in Amazon’s catalog, even if they are not the legitimate owner. This can occur when sellers use self-generated or improperly sourced barcode numbers that mimic valid GTIN formatting.
This can create a catalog conflict and trigger Error 8541.
What To Do Next
If you receive this error, email us at contact@ozbarcodes.com.au with:
- Your order number
- Name and email used for purchase
- Brand/manufacturer name entered into Amazon
- Whether you are enrolled in Amazon Brand Registry
- Screenshot of the Amazon error message
We will investigate the issue and advise on the best resolution. Where necessary, we may assist with replacement GTINs.
Important Information
Our barcodes are unique
We supply unique barcode numbers and do not recycle or reissue them to multiple customers.
Amazon catalog conflicts are usually platform-specific
Error 8541 issues are generally isolated to Amazon’s internal catalog and typically do not affect retail stores or other marketplaces.
Need Help?
If you are unsure whether this error is caused by a duplicate assignment or a catalog conflict, contact our team and we’ll help you resolve it.