Understanding FBA Errors

This topic defines the error messages that may appear when creating and shipping an FBA Inbound Shipment, and provides the known and possible solutions.

NOT_IN_PRODUCT_CATALOG This issue occurs when Amazon.com information, and the information provided by Amazon’s MWS API, are not in sync.  This is outside of our control and usually remedies itself upon the next API sync Amazon initiates.

If you are still having this issue after 24-hours, contact Seller Central Support to advise that the item is not being found when searched via their MWS API, and ask when the issue will be resolved.

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

Solution (possible): Add the item to the FBA Shipment in SellerCentral. After adding the item, some form 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_WITH_NO_VALID_FC Item has no eligible Fulfillment Center as it is hazmat (hazardous material) so you cannot send it to FBA.
NO_EXTERNAL_IDENTIFIER_FOR_EXISTING_MAP  Product is missing the 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)
UNKNOWN_SKU This SKU is not in your FBA Catalog.

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

ITEM_UNDER_HAZMAT_REVIEW 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 after 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 Product is missing dimensions for FBA.


  1. Open the shipment.
  2. Click Action Menu > Edit > GO.
  3. Select product.
  4. Click Action Menu > Revise Dimensions and Weight on Amazon > Go. (Update Weight and Dimensions of the product by clicking on the box next to the product)
  5. Save the shipment.
EXTERNAL_ID_MAPS_MULTIPLE_IAIDS UPC for the listing was assigned to multiple ASINs. Hence, when you are sending the shipment, the ASINs are conflicting at the back end and causing errors to the system. Can happen when an item that used to be stickerless now becomes requiring label, because the UPC associated with this ASIN used to be associated with that ASIN only, but 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.
 AmazonContractNotSigned 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.
 CannotConfirmTransportContent The Amazon-partnered shipment request is ineligible for confirmation. Check if the shipment is already confirmed.
 CannotEstimateTransportContent  The Amazon-partnered shipment request is ineligible for estimation. Ensure that the ShipFrom address is in a marketplace that is eligible for Amazon’s Partnered Carrier  Program.
 CannotVoidTransportContent The Amazon-partnered shipment request can no longer be voided.
 CarrierContractNotSigned 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.
 CarrierInvalidForMarketplace The specified carrier is not supported in the marketplace where the inbound shipment originates.
 InvalidCountrySubdivisionCode The specified ShipToCountrySubdivisionCode is invalid. Ensure that the  ShipToCountrySubdivisionCode value is for a country subdivision that contains an Amazon fulfillment center that the seller is registered with.
 MissingCarrierType  No CarrierName value was specified. Specify a valid CarrierName value.
 NoPackagesOrPallets 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.
 TransportContentNotFound No Amazon-partnered shipment was associated with the specified ShipmentId value. Specify a ShipmentId value that is associated with an Amazon-partnered shipment.
 UnknownCarrierType 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 does usually indicate it is an Amazon server issue, and by waiting 30 minutes to an hour, the issue should be resolved.
EXP_DATED_ITEM_HAS_EXISTING_STICKERLESS_MAP The merchant’s SKU is marked as a commingled product, but it is actually not commingable. Amazon may change that error message to: Expiry-dated or lot-controlled product cannot be commingled. Please create new listing for the same ASIN but different SKU.
 LABEL_PREP_OWNER_INCOMPATIBILITY_ERROR Can occur when AMAZON_LABEL_ONLY is being sent. Amazon is returning a message that they do not have enough information about the product to label the product themselves. For example, if the product does not have a UPC.

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

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

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

 Seller is blocked by the AndonCordManager. This is not a technical or code issue; you have probably been stopped by an FBA compliance issue. Check your account health and speak to an Amazon representative if possible.
SupplyCategoryUnavailable ASIN is enrolled in UNO (Small & Light) program and MCF cannot fulfill UNO ASINs. Small and Light can be used only to fulfill Amazon orders.
EXTERNAL_ID_MAPS_MULTIPLE_IAIDS_FOR_EXISTING_MAP The item has a new FNSKU and can longer be posted under the existing one.


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