Amazon Error Code 8566: What It Is and How to Fix It

Are you facing Amazon Error Code 8566 and wondering how to tackle it? Don’t worry; this guide will help you understand what this error means, why it occurs, and how to fix and prevent it in the future.

Running into error codes can feel like hitting a wall, especially when you’re trying to keep your Amazon listings in top shape. If you’ve encountered Amazon Error Code 8566, you’re not alone.

This error frequently disrupts sellers just when they believe they’ve perfected their product details. It can be incredibly frustrating, particularly if you’re working hard to maintain a seamless listing process.

However, Error Code 8566 isn’t just an obstacle; it’s Amazon’s way of ensuring the accuracy and quality of product listings. By understanding this error, you’ll gain insights that can actually improve your overall selling strategy.

In this guide, we’ll break down what Error Code 8566 is and why it happens. We’ll also provide actionable steps to resolve it and prevent it from occurring in the future.

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What is Amazon Error Code 8566?

Amazon Error Code 8566 is part of Amazon’s 8000 series error codes, signaling various potential issues with your product listings. It often arises when the product you’re trying to upload doesn’t match any existing ASIN (Amazon Standard Identification Number) in Amazon’s catalog, and the provided data isn’t enough to create a new ASIN.

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This error prevents sellers from adding or updating listings when their product details are either insufficient or inaccurate. Essentially, Amazon requires complete and accurate data to either match an existing ASIN or create a new product page.

On Amazon, only one product detail page is allowed per unique product, ensuring consistency and avoiding duplicates. If a product already exists in Amazon’s catalog, sellers must add their offer to that existing page by matching the ASIN rather than creating a new listing.

If your product listing doesn’t align with an existing ASIN or lacks the necessary details to generate a new one, you’ll encounter Error Code 8566. Understanding this error is crucial for maintaining accurate and compliant product listings on Amazon.

What are the Reasons Why This Occurs?

Amazon Error Code 8566 often appears to ensure sellers maintain accurate and high-quality product data. Understanding the main causes is key to diagnosing and resolving the issue, with two primary triggers outlined below.

Insufficient Sales History

Amazon has a system in place to control the number of products sellers can upload to their catalogs, especially for newer sellers. If you try to upload a large number of items without establishing a solid sales history, Amazon may restrict your ability to add more products.

This restriction helps Amazon maintain quality by preventing new sellers from flooding the platform with a large catalog before proving their reliability and sales capabilities.

Incorrect Product Information

Another common cause of this error is submitting product information that doesn’t match Amazon’s database. This can happen in several ways:

  • When a product you’re uploading doesn’t match any existing ASINs in Amazon’s catalog, the platform will return error code 8566 if the data provided is insufficient for creating a new ASIN.
  • If your product feed lacks the correct standard identifiers such as a UPC, ISBN, or EAN, Amazon won’t be able to match your product with an existing ASIN. Using non-GS1-certified UPCs or generic codes purchased online can also lead to mismatches.
  • If your product’s brand name doesn’t align with the information linked to your UPC, Amazon will block the listing update.
  • Incomplete or inaccurate product details like manufacturer part numbers, dimensions, or brand names can result in failed ASIN creation attempts.

How to Solve Amazon Error Code 8566

Depending on the cause, you can resolve Amazon Error Code 8566 using the following steps:

  1. Building Sufficient Sales History
    • If you’re facing this error due to insufficient sales history, the only solution is to generate more sales on the platform. Aim to grow your sales over time, and Amazon will gradually lift the restrictions.
    • Be patient and consistent with your efforts, as Amazon evaluates your sales activity weekly. As your sales increase, you’ll be able to upload more products.
  2. Correcting Product Information
    • Ensure that your brand name matches exactly with the UPC registered for your products. Double-check that the brand information aligns with what is on file with Amazon.
    • Always use GS1-certified UPCs for your products. Using generic or unofficial UPCs can cause conflicts if those codes are already associated with other products or brands.
    • When uploading products via flat files, make sure every entry for the UPC, brand name, ASIN, and product details is accurate and consistent.

By addressing these points, you’ll resolve the 8566 error code efficiently and avoid further complications.

How to Prevent Amazon Error Code 8566

Taking proactive steps to prevent Error Code 8566 will save you time and frustration in the long run:

  • Before creating a new listing, search Amazon’s catalog to see if an ASIN already exists for your product. This ensures you’re not trying to create duplicate listings.
  • Invest in legitimate, GS1-certified UPCs for your products. Avoid purchasing non-compliant or reused UPCs from unauthorized sources, as these can cause conflicts.
  • Always include detailed product information such as manufacturer part numbers, brand names, dimensions, and product descriptions. This makes it easier for Amazon to correctly match your product or create a new ASIN.
  • Use tools like Amazon’s internal resources or third-party solutions that provide ASIN matching services. These tools help you quickly identify the correct ASINs and assign them to your products, reducing the risk of matching errors.

Following these preventive measures can minimize the likelihood of encountering error code 8566 and maintain a smoother product listing experience.

Overcoming the Amazon Error Code 8566

Amazon Error Code 8566 is a common issue that many sellers face, but with a better understanding of the reasons behind it, you can resolve and prevent this error. The key is to maintain accurate product information, match existing ASINs whenever possible, and establish a solid sales history.

By taking these steps, you’ll not only fix the 8566 error code but also build a more credible and efficient presence on Amazon.

Are you have issues with your Amazon business? Contact our Amazon agency today!

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Ken Zhou - Amazon Strategist

Ken Zhou, Chief Operating Officer

Hi I’m Ken, COO at My Amazon Guy, a high-performing operations team driving business growth through strategic leadership, sales excellence, and process optimization. We scale companies, streamline processes, and deliver significant revenue growth through innovative marketing strategies and scalable solutions.

Reach us at +1 470-623-1951 Monday to Friday, from 9:00am to 5:00pm EST.