New UPC on the same carton: kit before you relabel

The box looks the same. The barcode does not. A new UPC is not a reprint job until you know whether the product changed. The Transformation Kit is the desk move: pad from this carton, compare to the live ASIN, then decide relabel vs new child.

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Open the new-code carton first

Write type, size or count, material, and what is in the box. Photo of the pad next to the new UPC. Compare to last month’s pad. If the four facts match and only the code changed, you may be able to keep the ASIN and update the identifier. If the count, insert, or material moved, this is a new child even if the factory reused the photo.

Do not print FBA labels until the listing matches

If it is the same product, kit title and first bullet from this pad anyway. Factory sheets drift. Run free optimize only if the English still reads like the export row. Save. Then relabel. If it is a new child, create that offer from the new pad and receive against it. Mixing both codes in one inbound is how you buy a week of stranded inventory.

Keep the old code out of the new inbound

Old lots stay on the old identifier until they sell through or you pull them. You stay responsible for Amazon compliance. A new sticker does not make two cartons into one honest listing. When this ASIN is clean and the next code change is waiting, Pro checkout is the paid path. Paying does not read the barcode for you.

No fake reviews. No rank promise. You stay responsible for Amazon compliance.