Amazon FBA Common Errors and Troubleshooting

This issue occurs when Amazon.com’s information is not in sync with the information provided by Amazon’s Selling Partner API. This is outside of our control and usually remedies itself the next time Amazon initiates an API sync.

If you are still having this issue after 24 hours, contact Seller Central Support and tell them that the item is not being found when searched in their Selling Partner API. They should provide a window for when the problem will be solved.

This error indicates that there is a mismatch between the Product in Flexport and its Active Listing in Seller Central, usually the ASIN.

Solution: Make sure that the ASIN and Merchant SKUs of the product match between the two platforms.

Invalid item for MSKU (SKU) with reason ITEM_STRANDED. When you delete or close a listing, or change it from Fulfilled by Amazon to Fulfilled by Merchant, it may strand your inventory.

Product listing issues, infringement concerns, or system errors can also result in stranded inventory.

Solution: If the listing is still there, just do a minor update (price, title, etc.) to see if it becomes active again. If not, use the Inventory Loader upload with the SKU, ASIN, and Price. Failing that, create a case with Seller Support and advise what you tried and they can work on it at their end. 

Note: If you have units of an ASIN stranded in the fulfillment center, do not send additional inventory of that ASIN to Amazon.

If you add an ASIN with stranded inventory to your shipment, you will receive an alert and your shipment will not be processed.

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Not all products are eligible for Stickerless Commingled Inventory. Products in grocery, health, beauty, and media must always be labeled. Amazon is always evaluating categories and products and may change product eligibility at any time.

Solution (possible): Add the item to the FBA Shipment in Seller Central. After adding the item, some version of the following message may appear: This product is not eligible for stickerless commingling. This product requires labeling to be received at our fulfillment centers. I agree to apply labels to these products. 

This SKU is not in your FBA Catalog.

Solution: Change the product to Fulfilled by Amazon. Launch the product to Amazon, wait several minutes, then retrieve the FNSKU by executing the action Get FNSKU.

The product is missing dimensions for FBA.

Solution:

1. Open the shipment.
2. Click action menu > Edit > GO.
3. Select the product.
4. Click action menu > Revise Dimensions and Weight on Amazon > Go. (Update Weight and Dimensions of the product by clicking the box next to the product)
5. Save the shipment.

UPC for the listing was assigned to multiple ASINs. When you send the shipment, the ASINs conflict in the back end and cause errors in the system. This can happen when an item that used to be stickerless now requires a label. That’s because the UPC associated with this ASIN used to be associated with that ASIN only, but is now associated with more than one ASIN.

Solution: You may have to create a new listing on Seller Central.

Quantity is not divisible by QuantityInCase

for SellerSKU: xxxxxxxx

This can occur when AMAZON_LABEL_ONLY is sent. Amazon is returning a message that they do not have enough information about the product to label the product themselves. Example: the product does not have a UPC.

Solution: Add the product information or label items yourself. Use the Seller Label option.

FBA guides sellers to align their inventory supply with buyer demand, and they check if there is sufficient inventory capacity for the given items. You are already at the maximum inventory allowed for this product, due to capacity or other restrictions.

Solution: The item must be removed from your batch to finish creating your shipment.

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