If you’ve been selling on Amazon for a while, you’ve probably noticed that managing your product catalog can get messy over time. Duplicate listings, multiple ASINs for the same product, or separate variations that should really be grouped; these issues are more common than you’d think.

Not only do they make your storefront look disorganized, but they also split your sales, reviews, and visibility. That’s why understanding how to merge ASINs on Amazon is such an important skill for every seller.

In this blog, we’ll explain what ASINs are, why merging them matters, how to merge two ASINs on Amazon safely, and when it’s best to rely on professional services like SellerPickle.com, who specialize in catalog management and ASIN merging.

What Are ASINs and Why Do They Matter

Before we dive into how to merge them, let’s clarify what an ASIN actually is.

ASIN stands for Amazon Standard Identification Number. It’s a unique code assigned to each product listed on Amazon’s marketplace. Every variation of a product — color, size, or packaging — has its own ASIN.

For instance, if you sell a water bottle in three colors, that’s three separate ASINs under one main product family.

However, sometimes sellers or even Amazon’s system accidentally create duplicate ASINs for the same product. When that happens, your sales data, reviews, and search ranking can get split across multiple listings. That’s why knowing how to merge ASINs on Amazon properly can help you clean up your catalog and make your listings perform better overall.

Why You Might Need to Merge ASINs

Merging ASINs isn’t something sellers do every day, but it’s essential when you encounter certain issues. Here are the most common reasons to initiate an Amazon merge ASIN request:

• Duplicate Listings: You (or another seller) accidentally created two separate listings for the same product.

• Split Variations: Product variations were listed individually instead of under one parent ASIN.

• Brand Consolidation: You’re rebranding or updating packaging and want to merge old ASINs into a new one.

• Review Consolidation: Combining listings can help consolidate reviews and improve credibility.

In short, learning how to merge two ASINs on Amazon helps you streamline your catalog, protect your data, and strengthen your listings’ visibility in Amazon’s search results.

How to Merge Two ASINs on Amazon

Now, let’s get practical. Here’s a step-by-step guide on how sellers typically handle ASIN merges.

Step 1: Identify the Duplicate or Related ASINs

Start by finding which ASINs need to be merged. They must represent the exact same product — same brand, model number, size, and packaging. If there’s even a slight difference (for example, a different version or feature), Amazon won’t approve the merge.

Step 2: Choose the Main or “Parent” ASIN

Decide which ASIN will remain active after the merge. Usually, you’ll want to keep the one with the highest number of reviews or the strongest sales record. This will become your “parent” listing.

Step 3: Gather Evidence

Amazon’s catalog team often asks for proof that both ASINs represent the same product. This might include manufacturer links, UPC numbers, or images showing the identical nature of the products.

Step 4: Contact Amazon Seller Support

Once you have everything ready, open a case with Seller Support. Clearly explain that you want to merge ASINs from Amazon listings and include all relevant details. Provide:

• The ASINs you want merged

• The one you want to keep as the parent

• Evidence that both represent the same item

Be professional and precise — vague requests often lead to rejections.

Step 5: Wait for Approval and Verify

After submitting, Amazon’s team will review your request. If approved, the listings will be merged under your chosen ASIN. Once complete, double-check that reviews, variations, and product details have been transferred correctly.

If you encounter issues, contact support again to ensure the merge was done properly.

Challenges Sellers Face During ASIN Merging

Although the process sounds straightforward, merging ASINs isn’t always smooth sailing. Many sellers experience these challenges:

• Rejected requests: Amazon denies merges if details don’t match exactly.

• Review loss: In some cases, reviews don’t carry over automatically.

• Temporary delisting: Occasionally, products can go inactive during the merge.

• Time-consuming back-and-forth: Communicating with Seller Support can take several days or weeks.

That’s why many sellers choose to use a professional ASIN merging service instead of managing it alone.

When to Use a Professional Amazon Merge ASIN Service

If you’re dealing with multiple products or large catalogs, the process can quickly become overwhelming. That’s where an expert team like SellerPickle.com can help.

SellerPickle specializes in Amazon catalog optimization, listing management, and ASIN merging. Their Seller ASIN Merging Service ensures your requests are handled correctly, saving you time and preventing costly errors.

Here’s what they typically handle for sellers:

• Submitting ASIN merge requests directly to Amazon support.

• Verifying product data for eligibility.

• Ensuring all reviews and product information are transferred correctly.

• Managing communication with Amazon until the merger is complete.

Their team understands Amazon’s internal catalog rules, something most sellers struggle with. So instead of guessing, you can trust experts who’ve done it successfully for hundreds of sellers.

Best Practices for a Successful Amazon Merge ASIN

Even if you handle it yourself, keep these best practices in mind:

1. Ensure identical product data: Merging two products that aren’t identical can get your listings flagged.

2. Keep detailed records: Always note which ASINs were merged and when.

3. Monitor after merging: Check your listings for missing variations or incorrect information.

4. Don’t abuse merging: Amazon may suspend your account if it detects manipulation (for example, merging unrelated products to gain reviews).

Remember, the goal is to maintain a clean, professional catalog that’s easy for both Amazon and customers to navigate.

The Bottom Line

Knowing how to merge ASINs on Amazon is a must-have skill for any serious seller. Whether you’re fixing duplicate listings or optimizing your catalog, merging helps consolidate your brand’s presence and maximize your visibility.

However, the process can be tricky, especially if you’re unfamiliar with Amazon’s strict guidelines. That’s why many sellers turn to experts at SellerPickle.com; their dedicated Seller ASIN Merging Service handles the entire process, ensuring your listings are merged accurately and safely.

So, if you’ve got duplicate ASINs cluttering your catalog or separate variations that need combining, don’t wait for Amazon’s algorithm to fix it for you. Take control, streamline your listings, and let your brand shine through one unified, powerful ASIN.