The FBA Prep Checklist That Prevents Inbound Rejections

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

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