Most inbound rejections come down to a handful of avoidable mistakes. Here is the checklist our prep-center operators run before a single box ships.

1. Label every unit with the correct FNSKU

Each unit needs a scannable FNSKU that covers the manufacturer barcode. If two products share a barcode, Amazon will commingle them — which is almost never what you want.

Print at 300 DPI or higher
Cover the original UPC/EAN completely
Verify the label scans before boxing

2. Poly-bag with a suffocation warning

Any bag with an opening of 5 inches or larger needs a printed suffocation warning. The text must be legible at a minimum font size.

Bags under 5 inches don't strictly require the warning, but adding it anyway avoids edge-case rejections.

3. Date-label expirable inventory

Consumables, supplements, and topicals need the expiration date in MM-DD-YYYY or MM-YYYY, printed — not handwritten.

4. Respect box weight and dimension limits

Limit	Standard	Oversize
Max weight	50 lb	50 lb (unless single item exceeds)
Longest side	25 in	Varies

Ship it clean the first time and your inventory goes live days sooner.

#compliance

FBA Prep Checklist