The 5 most common FBA prep mistakes (and how to avoid them)

Mistake #1: Wrong FNSKU labels

Using manufacturer barcodes instead of FNSKU labels leads to commingled inventory. Your products get mixed with other sellers' — potentially counterfeit — items. Result: negative reviews, A-to-Z claims, and account health issues.

Fix: Always use FNSKU labels. A professional prep center ensures every unit gets the correct label.

Mistake #2: Inadequate packaging

Sending fragile items without bubble wrap or glass products without proper protection. Amazon will charge you penalties and may dispose of damaged inventory.

Fix: Follow Amazon's packaging requirements exactly. When in doubt, over-protect.

Mistake #3: Shipment quantity mismatches

Sending more or fewer units than declared in your shipping plan. This triggers investigations, delays, and potential account warnings.

Fix: Count everything twice. Better yet, let a prep center do the counting — we verify every unit against your shipment plan.

Mistake #4: Expired or missing suffocation warnings

Products in poly-bags over a certain size require suffocation warnings. Missing them means automatic penalties.

Fix: Know the requirements. At Prepify Center we include suffocation warnings on all qualifying poly-bags.

Mistake #5: Ignoring prep requirements until it's too late

Rushing shipments without checking Amazon's current requirements. Rules change frequently, especially in 2026.

Fix: Work with a prep center that stays current on Amazon's requirements. We update our processes in real-time.

The cost of mistakes vs the cost of prevention

A single prep mistake can cost $0.55-$1.50+ per unit in penalties. Professional prep costs from $0.75/unit — and comes with zero penalties.

Get your free quote and stop paying for mistakes.