Why Your FBA Shipments Get Rejected — And How to Avoid It
October 12, 2025
<p>You prepped 500 units. You shipped them to Amazon. Now the notification: "Shipment has been received with errors."</p>
<p>Every seller deals with this at some point. The smart ones only deal with it once and fix the root cause.</p>
<h2>Reason 1: Wrong Barcode Type</h2>
<p>This is the most common rejection. Sellers put the manufacturer UPC on units instead of the Amazon FNSKU. Amazon needs FNSKU barcodes for all FBA inventory. Fix: always generate FNSKUs in Seller Central. Cover any existing manufacturer barcodes with a sticker. Use a barcode scanner to verify each label is readable before shipping.</p>
<h2>Reason 2: Damaged or Unsellable Products</h2>
<p>If a unit arrives at Amazon with a crushed box, torn poly bag, or visible damage, Amazon flags the entire shipment. Fix: inspect every unit before shipping. Use proper packaging that can survive the trip to the warehouse. This means: at least 2 inches of cushioning for fragile items, sturdy boxes that will not collapse, and sealed poly bags with suffocation warnings.</p>
<h2>Reason 3: Expiration Date Issues</h2>
<p>Products with expiration dates must have the date clearly printed and must arrive with at least 90 days before expiry. No exceptions. Fix: check expiration dates before shipping. Do not send products that will expire soon. Amazon destroys them and charges you for disposal.</p>
<h2>Reason 4: Missing Required Labels</h2>
<p>Some products require specific labels: fragile stickers for glass, suffocation warnings for poly bags, battery labels for electronics, and hazardous material markings. Fix: know your category requirements before you start prepping. A prep center handles all of this automatically.</p>
<h2>Reason 5: Incorrect Box Weight or Dimensions</h2>
<p>Amazon measures every box. If the actual weight or dimensions differ from what you entered, you get a fee adjustment and a violation. Fix: weigh and measure every box. Round up, not down. If a box is close to the next weight bracket, put it in the higher bracket.</p>
<h2>How a Prep Center Prevents Rejections</h2>
<p>Prep centers see these issues every day. They know the requirements. They have the equipment: barcode scanners, label printers, proper packaging materials. And they have the experience to catch problems before they reach Amazon. One rejected shipment can cost more than a month of prep center fees. Do the math.</p>
<p>Every seller deals with this at some point. The smart ones only deal with it once and fix the root cause.</p>
<h2>Reason 1: Wrong Barcode Type</h2>
<p>This is the most common rejection. Sellers put the manufacturer UPC on units instead of the Amazon FNSKU. Amazon needs FNSKU barcodes for all FBA inventory. Fix: always generate FNSKUs in Seller Central. Cover any existing manufacturer barcodes with a sticker. Use a barcode scanner to verify each label is readable before shipping.</p>
<h2>Reason 2: Damaged or Unsellable Products</h2>
<p>If a unit arrives at Amazon with a crushed box, torn poly bag, or visible damage, Amazon flags the entire shipment. Fix: inspect every unit before shipping. Use proper packaging that can survive the trip to the warehouse. This means: at least 2 inches of cushioning for fragile items, sturdy boxes that will not collapse, and sealed poly bags with suffocation warnings.</p>
<h2>Reason 3: Expiration Date Issues</h2>
<p>Products with expiration dates must have the date clearly printed and must arrive with at least 90 days before expiry. No exceptions. Fix: check expiration dates before shipping. Do not send products that will expire soon. Amazon destroys them and charges you for disposal.</p>
<h2>Reason 4: Missing Required Labels</h2>
<p>Some products require specific labels: fragile stickers for glass, suffocation warnings for poly bags, battery labels for electronics, and hazardous material markings. Fix: know your category requirements before you start prepping. A prep center handles all of this automatically.</p>
<h2>Reason 5: Incorrect Box Weight or Dimensions</h2>
<p>Amazon measures every box. If the actual weight or dimensions differ from what you entered, you get a fee adjustment and a violation. Fix: weigh and measure every box. Round up, not down. If a box is close to the next weight bracket, put it in the higher bracket.</p>
<h2>How a Prep Center Prevents Rejections</h2>
<p>Prep centers see these issues every day. They know the requirements. They have the equipment: barcode scanners, label printers, proper packaging materials. And they have the experience to catch problems before they reach Amazon. One rejected shipment can cost more than a month of prep center fees. Do the math.</p>