By SnappyCrate | Updated August 2025

Small Parcel Delivery (SPD) is one of the most popular ways sellers ship inventory to Amazon. But even small cartons can cause big problems if labeling or routing is incorrect. Here’s how to avoid costly mistakes.

⚠️ Common SPD Errors

1. Incorrect Box Labels

   • Every carton must have its own FBA box ID label, generated from Seller Central.

   • Shipping without these or using outdated labels leads to delays.

2. Mixing SPD & LTL Requirements

   • Some sellers accidentally prepare cartons as if they were going on a pallet.

   • SPD cartons must meet standard carrier requirements (UPS, FedEx, DHL).

3. Overweight Cartons

   • Any box over 50 lbs may be rejected or incur overweight fees.

   • Cartons over 25” on one side risk oversize rejections.

4. Routing to the Wrong Fulfillment Center

   • Failing to follow Amazon’s routing instructions can cause refusals or rework fees.

✅ SnappyCrate’s SPD Services

• Box-level labeling applied correctly every time.

• Weight checks and re-packing to stay under Amazon’s limits.

• Routing verification to ensure cartons go to the right fulfillment center.

• Carrier coordination with Amazon-partnered UPS/FedEx for faster check-in.

Result: Faster receiving, fewer surprises, and Amazon-ready SPD cartons.