TOP 10 COMMON MISTAKES IN AMAZON FBM – ESPECIALLY BY NEW SELLERS

  1. Missing Order Confirmation Deadlines.

Amazon requires you to confirm orders within your handling time.
If you delay, orders get auto-cancelled, and your Late Shipment Rate (LSR) increases hurting your account health.

  1. Using Invalid Tracking Numbers.

Amazon only accepts recognized carriers (like DHL, UPS, FedEx, USPS).

  1. Poor Packaging & Branding.

Shipping branded products without proper packaging or including random invoices/promo materials can lead to.

  • Negative reviews

  • IP complaints from brands

  • A-to-Z claims

  1. Overpromising Shipping Time.

New sellers often choose 1-2 day handling to look competitive but can’t actually ship that fast.
Late shipments = poor metrics = Buy Box loss or suspension.

  1. Not Calculating Shipping Costs Properly.

FBM sellers pay their own shipping fees
Many forget to include

  • Packaging cost

  • Weight-based rates

  • Remote area surcharges

  1. Ignoring Customer Messages.

FBM requires quick customer service.
If you take more than 24 hours to respond Amazon notices and it can affect your Order Defect Rate (ODR).

  1. Wrong or Missing Return Policies.

You must match Amazon return policies refusing a return or delaying a refund often triggers:

❗A-to-Z Guarantee Claims
❗Negative feedback
❗Permanent listing restrictions

8. Listing Inauthentic or Restricted Products.

Even if you sourced it legally if your product is branded and you are not authorized, the brand can file IP claims.

FBM sellers are more exposed because Amazon is not handling the inventory.

9. Not Using Scanning/Shipping Tools.

Manual order processing leads to.

  • Labeling errors

  • Wrong tracking info

  • Fulfillment delays

10. Not Monitoring Metrics Regularly.

In FBM you are responsible for all metrics.

  • LSR (Late Shipment Rate)

  • VTR (Valid Tracking Rate)

  • ODR (Order Defect Rate)