Amazon Error: Invalid Product Identifier

The "Invalid Product Identifier" error on Amazon arises when a seller attempts to list a product using a product identifier that is either incorrect, invalid, or not recognized by Amazon's catalog. Product identifiers, such as UPCs (Universal Product Codes), EANs (European Article Numbers), ISBNs (International Standard Book Numbers), and ASINs (Amazon Standard Identification Numbers), are crucial for Amazon’s system to accurately categorize and list products.

Common Causes of Invalid Product Identifier Error:

1. Incorrect Product Identifier: The most common cause is entering an incorrect product identifier. This might happen due to typographical errors, leading zeros being omitted, or misreading the code.
2. Non-Registered Identifier: The identifier used might not be registered or recognized by Amazon’s database. This can occur if the identifier is not genuine or not assigned by an official issuing body.
3. Duplicated or Recycled Identifiers: In some cases, identifiers may be recycled or duplicated, causing conflicts in Amazon’s system.
4. Improper Formatting: Product identifiers need to adhere to specific formatting guidelines. Any deviation can result in this error.
5. Invalid Category Assignment: Using a product identifier that is valid for a different category or another product can also trigger this error.

To resolve the "Invalid Product Identifier" error, follow these steps:

1. Verify the Identifier:
   • Double-check the product identifier to ensure it is correct. Re-examine the digits for any typos or misread characters.
   • Use barcode scanning apps or devices to cross-verify the identifier.
2. Validate the Identifier:
   • Ensure the product identifier is valid and issued by an official authority. UPCs and EANs should be verified against databases provided by GS1 (Global Standards 1), the official issuing organization.
   • ISBNs should be verified via official ISBN agencies.
3. Check the Format:
   • Ensure that the identifier follows the correct format. For instance, UPCs should be 12 digits, EANs should be 13 digits, and ISBNs should be 10 or 13 digits.
   • Avoid adding any extra characters or spaces.
4. Use the Correct Category:
   • Verify that the product identifier corresponds to the correct category and product type. Some identifiers are product-specific and should not be used for other items.
5. Consult Amazon’s Database:
   • Search Amazon’s catalog to check if the product identifier is already listed. If it is, ensure you are listing the correct product associated with that identifier.
   • Use Amazon’s Brand Registry and GTIN (Global Trade Item Number) validation tool to confirm the validity of your product identifiers.
6. Contact the Manufacturer:
   • If you are unsure about the validity of the identifier, contact the product’s manufacturer or supplier for verification.
7. Amazon Support:
   • If the issue persists, contact Amazon Seller Support for assistance. Provide them with details about the product and the identifier you are using.