Below is a list of common validation errors and solutions from Amazon:



Validation ErrorSolution
You are not authorized to list products under this brand

To solve this error, follow below procedure:

a) In Seller Central, click the inventory link and select ‘Add a Product’.

b) Run a search for the item you wish to sell.

c) In the search results, click the ‘Listing limitations apply’ link for that item.

d) Click the Request Approval button to begin the application process.

To check the status of an application, return to the ‘Add a Product’ tool and click the Selling application status link located toward the top of the page in your Amazon selling account.

You are not authorized to list products in this product line or category.Some categories and product lines require approval from Amazon before you can list.  For more information see Categories and products that require approval
Merchant is not authorized to sell products under this restricted product group.

To request approval, either contact Seller Support or

follow the steps below:

a) In Seller Central, click the inventory link and select ‘Add a Product’.

b) Run a search for the item you wish to sell.

c) In the search results, click the Listing limitations apply link across from the item.

d) Click the Request Approval button to begin the application process.

To check the status of an application, return to the Add a Product tool and click the Selling application status link located toward the top of the page. For more information please see Restricted Products

Missing Attributes standard_product_id.
  • There is no barcode (UPC/EAN) associated with the product or one of the variants . Add the relevant barcode and resubmit.
  • The barcode you have provided is not recognised by Amazon. Please check it is the correct registered barcode for your product.
The SKU data provided conflicts with the Amazon catalog.The data provided by the retailer is conflicting with what Amazon has in the database. For example  (Merchant: '' / Amazon: '16192'). The retailer can update their content to match Amazon OR petition Amazon to change the data.
A value is required for the "part_number" fieldMPN is required
You cannot change the 'item_classification' for SKU 'XXX' by submitting a feed with a new value. To change this attribute, do the following: 1) Submit a feed to delete the existing SKU. 2) Submit a feed to recreate the SKU with the updated 'item_classification'.;This product classification has changed from a multi variant / single variant OR single variant / multi variant. For more information see Change variant
Marketplace Product Variant SKUs are not unique
This product variants are duplicated.  Variant attributes need to be unique  for example colour black, size small etc
Please provide a variation theme when creating a variation parent.
The variation used for a product is not yet configured for that category in Omnivore.  Omnivore Amazon integration is currently only configured to support colour and size. 
UPC/EAN is too short/long
The barcode UPC is missing characters or contains too many.  Please check the UPC against that product.
You can check GTIN existence here https://gepir.gs1.org/index.php/search-by-gtin 
The "Message/Product/DescriptionData/MerchantShippingGroupName" (XXX) field contains an invalid value.
This indicates that the shipping policy in Omnivore does not match the naming convention in Amazon.  The shipping template name must be replicated exactly and is case sensitive.
Cannot serialise to Amazon Australia feed format, error = Cannot find the Amazon product type
The category is not yet available on Amazon Australia
A value is required for 'department_field'
There is a required attribute for a specific category / sub category. Add in the Attribute and resubmit the feed.
A value is required in the "dvd_region" field because there are values in dependent fields.DVD region is required by Amazon to list in this category. If the data is not in your feed, you can add it via Marketplace attribute section. See FAQ on this   
A value is required in the "blu_ray_region" field because there are values in dependent fields

Blue Ray Region is required by Amazon to list in this category. If the data is not in your feed, you can add it via Marketplace attribute section. See FAQ on this
Cannot serialise to Amazon Australia feed format, error = Failed to marshal payload : The content of element 'BooksMisc' is not complete. One of '{Author, Binding}' is expected.]]If the product is mapped to a "book" category, you must supply all the required information, like Author.
If its not a book, map it to the correct category. 
We do not support the file type of the image uploadedAmazon does not support all image types particularly gifs. To block unsupported images please see this Article
A value is missing from one or more required columns from this group: [is_expiration_dated_product = "true"], [product_expiration_type = "Expiration Date Required"],Add a marketplace attribute for is_expiration_dated_product with a value of No
Missing Attributes product_type. SKU xxxx doesn't match any ASINs. Make sure that all standard product ids (such as UPC, ISBN, EAN, or JAN codes) are correctThe attribute product_type is determined by the category you are listing the product in. When the product_type is missing, can be related to 
  • category of that product in is not mapped to an Amazon category
  • GTIN data
  • Brand

So please check each of these to ensure they are correct

Missing Attributes standard_product_id. SKU xxxx-xx doesn't match any ASINs. Make sure that all standard product ids (such as UPC, ISBN, EAN, or JAN codes) are correct.Typically issues with UPC code, Brand, Category.

No barcode (GTIN) is provided at all or the one provided is invalid. Amazon cannot associate the offer with an existing catalogue item (ASIN), or create a new one.
So please check each of these to ensure they are correct.
You can check GTIN data here https://gepir.gs1.org/index.php/search-by-gtin 

SKU xxx-xxx is associated to more than 1 GCID, which is not allowed. Please send a delete feed for this SKU and all other SKUs with the same attribute values [merchant_suggested_asin], and then resubmit the SKUs.Please review the ASIN matching screens to ensure your product matches the existing Amazon database.
The SKU data provided is different from what's already in the Amazon catalog. The standard_product_id data provided matches ASIN xxxxxxxxxx, but the following data is different from what's already in the Amazon catalog.Amazon product data differs from your product for the GTIN you're provided. Please review your GTIN information and check the ASIN matching screens to ensure the data is correct.
SKU does not match any ASIN and the product data provided is not eligible for ASIN creation. Along with: You are using UPCs, EANs, ISBNs, ASINs, or JAN codes that do not match the products you are trying to list. Using incorrect UPCs, EANs, ISBNs, ASINs or JAN codes is prohibited and it can result in your ASIN creation privileges being suspended or permanently removed.Relates to bad GTIN information, so please check these to ensure they are correct and resubmit.
A value is required for the "is_expiration_dated_product" fieldPlease submit a ticket here  with the category and we can add it to the list  if auto populated ones.
We have temporarily removed your ability to submit listings (creating new offers or new ASINs) because an unusually high number of listings have been created from your account.Self explanatory and goes away after time. I have 1 ticket now where it hasn't so will need an Amazon Support ticket raised I think, Will update solution here when I know.
The following attributes are missing for SKU: [XXXXXXXXX]: [manufacturer]

This error occurs when you have not provided a value for a particular field in your product data

feed. For example, you have not specified [manufacturer]. Please check the data on your eCommerce store and reimport. If it fails again, please submit a ticket here 

Please indicate that the item is a variation parent before setting up variation relationships. Along with: You may not create new variation relationships for this Brand. You are free to add offers to any existing ASIN for this Brand.



No solution yet, submit a ticket here