This article addresses error messages that one may encounter when listing FBA. 


This SKU already exists in your inventory and is mapped to a different ASIN. You will need to change the SKU for this item. It may be that the ASIN for the SKU has changed in the catalog.


This issue occurs when’s information is not in sync with the information provided by Amazon’s MWS 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 MWS API. They should provide a window for when the problem will be solved.

See more: Error: This SKU is not in the Amazon catalog


Not all products are eligible for Stickerless Commingled Inventory. Products in grocery, health and 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.


Item has no eligible Fulfillment Center because it is hazmat (hazardous material). You cannot send it to FBA.


The product is missing a UPC on Seller Central.

Failed to preview package reason= PARENT_IAID    

A matrix parent is included in the inbound shipment. Only matrix children can be sent. (The matrix parent SKU is not a real item).


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.


Potential Hazardous Material (Hazmat). Product under review by Amazon.

You must include a valid ShipmentId with a call to the CreateInboundShipment operation. Get ShipmentId values by calling the CreateInboundShipmentPlan operation. The request to CreateInboundShipment must include only items and quantities that have been previously planned through CreateInboundShipmentPlan.    

The temporary ID assigned to a previewed shipment expires in 48 hours.

Insufficient inventory capacity for the operation   

From Amazon Seller Forums: You may have an inventory storage limit. Inventory storage limits generally apply to new FBA sellers and existing FBA sellers with slower-turning inventory.  If your Amazon FBA account is configured for Unlimited storage: one of the items in the Preview has an ASIN level capacity restriction. Unfortunately,  Amazon does not tell us which item is causing the error.


Missing Dimensions; How do I add dimensions?


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 becomes requiring 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.

Shipping Status is ERROR_ESTIMATING

There’s an error in the address. For example, the zip code is invalid because of a period at the end of the zip code.


Seller has not accepted Amazon’s Partnered Carrier Program terms and conditions. Seller should accept Amazon’s Partnered Carrier Program terms and conditions on Seller Central.


The Amazon-partnered shipment request is ineligible for confirmation. Check if the shipment is already confirmed.


The Amazon-partnered shipment request is ineligible for an estimate. Ensure that the Ship From address is in a marketplace that is eligible for Amazon’s Partnered Carrier  Program.


The Amazon-partnered shipment request can no longer be voided.


Seller has not accepted the carrier’s terms and conditions. Seller should accept the carrier’s existing or revised terms and conditions on Seller Central.


The specified carrier is not supported in the marketplace where the inbound shipment originates.


The specified ShipToCountrySubdivisionCode is invalid. Ensure that the  ShipToCountrySubdivisionCode value is for a country subdivision that contains an Amazon fulfillment center where the seller is registered.


No CarrierName value was specified. Specify a valid CarrierName value.


No package information (for Small Parcel shipments) or pallet information (for Less Than Truckload/Full Truckload (LTL/FTL) shipments) was specified. Specify this information using either the PackageList or the PalletListparameter of the PutTransportContent operation.


No Amazon-partnered shipment was associated with the specified ShipmentId value. Specify a ShipmentId value that is associated with an Amazon-partnered shipment.


No carrier was found that matched the specified CarrierName value. Specify a valid CarrierName value.

Quantity is not divisible by QuantityInCase for SellerSKU: xxxxxxxx

The Qty to Ship is not divisible by the Qty Per Case. For example, Qty to Ship = 1 and Qty Per Case = 50 is incorrect, because 1 is not divisible as a whole number by 50. Qty to ship refers to the Qty of Units you are shipping.

Unexpected error occurred 500

An HTTP 500 error isn’t usually an Amazon server issue. the problem should be resolved by itself in 30 minutes to an hour.


The merchant’s SKU is marked as a commingled product, but it is not commingleable. Amazon may change that error message to: Expiry-dated or lot-controlled product cannot be commingled. Please create a new listing for the same ASIN but a different SKU.


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

Seller is blocked by the AndonCordManager.

This is most likely an FBA compliance issue, not a technical or code issue. Check your account’s status and speak to an Amazon representative if necessary. How do I resolve the AndonCordManager error message I get while listing?


The item has a new FNSKU and can longer be posted under the existing one.


This error means that there are currently no eligible FCs in the destination country to inbound all the mentioned skus. You'll need to remove the SKUs mentioned in the API response in order to proceed further. If the seller considers that this is incorrect or has doubts in the logic have him contact seller support directly as this is part of the fba configuration and out of the SPAPI's scope.