FBA Prep Services: Everything You Need to Know

What Are FBA Prep Services?

Fulfillment by Amazon (FBA) requires products to meet specific preparation and labeling standards before they're accepted at Amazon fulfillment centers. FBA prep services handle this entire process for you: receiving your products from manufacturers, inspecting them, labeling with FNSKU barcodes, preparing packaging to Amazon's specifications, and shipping compliant inventory to FBA warehouses.

For Amazon sellers, prep is a necessary but time-consuming step. Doing it in-house means dedicating space, equipment, and labor to compliance. Outsourcing to a prep center lets you focus on product sourcing, marketing, and growing your Amazon business.

Amazon's Prep Requirements

Amazon has strict requirements that vary by product category. Non-compliant shipments get refused, generating additional fees and delays.

• FNSKU labels: Every unit must have a scannable FNSKU barcode (not UPC)
• Poly-bagging: Required for textiles, plush, and products with loose parts (5mil+ thickness, suffocation warning)
• Bubble wrap: Required for fragile items like glass, ceramics, and electronics
• Overboxing: Products that won't survive shipping alone need outer cartons
• Sets/bundles: Multi-packs must be sealed together with 'Sold as set' labels
• Expiration dates: Required for consumables, must be in MM-DD-YYYY or MM-YYYY format
• Hazmat documentation: Safety Data Sheets (SDS) for applicable products

The FBA Prep Process: Step by Step

A typical FBA prep workflow at a professional prep center follows these steps:

• Receive: Your products arrive at the prep center from your manufacturer or supplier
• Inspect: Each unit is checked for damage, defects, and quantity accuracy
• Prep: Products are labeled (FNSKU), bagged, wrapped, or bundled per Amazon requirements
• Plan: Shipment plans are created in Amazon Seller Central
• Box: Products are packed into cartons following Amazon's box content requirements
• Label: Cartons receive FBA shipment labels
• Ship: Compliant inventory ships to designated Amazon fulfillment centers

FBA Prep Pricing Breakdown

FBA prep services typically charge per unit, with additional fees for special handling. Understanding the cost structure helps you evaluate providers and calculate your all-in landed cost for Amazon.

• Receiving and inspection: $0.10-0.30 per unit
• FNSKU labeling: $0.20-0.50 per unit
• Poly-bagging: $0.30-0.75 per unit
• Bubble wrapping: $0.50-1.50 per unit
• Bundling/multi-packs: $1.00-3.00 per bundle
• Storage: $20-40 per pallet per month
• Outbound shipping to FBA: $0.30-1.00 per unit

Choosing an FBA Prep Provider

Not all prep centers are equal. Key factors to evaluate include: location (closer to Amazon fulfillment centers means lower shipping costs), turnaround time (best providers process within 48 hours of receipt), accuracy (ask for their error rate—it should be below 1%), technology (integration with your Amazon Seller Central account), and scalability (can they handle your peak seasons).

Also consider whether you need just FBA prep or broader fulfillment services. If you sell on your own website too, a full-service 3PL that offers FBA prep alongside DTC fulfillment gives you one inventory pool and one operational partner.

Common FBA Prep Mistakes

Even experienced sellers make prep mistakes that lead to costly rejections and delays:

• Using UPC barcodes instead of FNSKU labels
• Poly bags thinner than Amazon's 1.5mil minimum
• Missing suffocation warning on poly bags
• Expiration dates in wrong format
• Exceeding Amazon's 50lb carton weight limit
• Wrong box content information in shipment plans
• Shipping to wrong fulfillment center