Amazon Variation Reviews Not Combining: What Should You Do?
As an Amazon seller, you’re aware of how crucial product reviews are. They not only influence purchasing decisions but also affect your product’s ranking on Amazon’s search results. If you’re facing an issue where your product variation reviews are not combining, you’re not alone. In this blog post, we will address why this happens and what you can do to correct it.
What Are Amazon Variations?

Amazon Variations, also known as Product Variations or Parent-Child relationships, is a feature on Amazon’s platform that enables sellers to consolidate multiple variations of a product into one listing. These variations include different options or versions of the same product, such as various sizes, colors, or styles. The objective behind this is to enhance the shopping experience for customers by enabling them to conveniently compare and select various options within a single product detail page, thereby eliminating the need to navigate to separate pages for each product variation.
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Listing variations typically include 2 main components:
- Parent Product (Parent ASIN): The Parent ASIN is the main product listing. It is not for sale; it only exists to establish the relationship among the Child ASINs.
- Child Products (Child ASIN): Child ASINs are variations of the product. These are the items that customers actually add to their shopping carts. Each variation (e.g., different colors, sizes) has its own Child ASIN.
When set up correctly, the reviews across all Child ASINs get combined and reflected under the main Parent ASIN and the individual Child ASINs. This means that when a customer clicks on any Child ASIN, they can see all the reviews for all variations of that product.
Why Are Variation Reviews Not Combining?

Good variation relationship listings should ideally combine reviews. However, sometimes this does not happen. Here are three key reasons for this anomaly:
1) Invalid Child Products
If you add Child products that do not accurately represent variations of the Parent product, Amazon might not combine the reviews. It’s crucial to ensure that your Child products are genuine variations of the Parent product.
2) Unusual Review Behavior
If Amazon detects unusual review activity, such as a sudden spike in reviews or patterns suggestive of inauthentic reviews, it may prevent the reviews from combining. This is done to maintain the integrity of the review system.
3) Improper Mapping in Seller Central
If the Child ASINs are not correctly linked to the Parent ASIN on Seller Central, or if the listing variation option is not enabled, the reviews may not combine.
How to Ensure that Variation Reviews Will Combine

To ensure that your reviews will combine in your Parent-Child listing, it’s essential to follow these best practices when creating variations:
1) Ensure That the Products Are True Variations
Make sure that the Child and Parent ASIN are actual variations of each other. This means that they should represent the same basic product but differ in aspects such as size, color, or style.
2) Do Not Create Large Variation Families
Do not create variation families containing more than 2,000 Child ASINs as this is the maximum number Amazon will display. Beyond this limit, the system may fail to identify the particular variation.
3) Maintain Brand and Product Type Consistency
When you create variation families, make sure the items are of the same brand or product type. Adding unrelated products to a variation family might lead to review combination issues.
What to Do When Variation Reviews Do Not Combine?
If you have taken all the above precautions and still find that your variation reviews are not being combined or shared, here are the steps to address this issue:
Step 1: Check for Eligibility
- Confirm that the product in question has multiple variations, such as different sizes, colors, or styles.
- Ensure that the variation reviews are not being shared by checking the product listing page and the individual variation pages.
Step 2: Verify Variation Mapping
- Go to your Amazon Seller Central Account and navigate to the Manage Inventory section.
- Locate the product with variation reviews not sharing and click on Edit next to it.
- Scroll down to the Variations section and verify that the Child listings are correctly mapped and linked to the Parent listing.
- If any Child listing is not properly mapped, select the correct Parent ASIN and save the changes.
Step 3: Check Variation Review Setting
- From the same detail page, scroll down to the Variation Theme section.
- In Variation Themes, click on the Edit button next to Variation Review Setting.
- Ensure that the option for Share Reviews Between Variations is enabled.
- If the option is disabled, enable it and save the changes.
Step 4: Contact Amazon Seller Support
- The issue should be resolved after mapping and editing just the Variation Theme section. However, if it persists reach out to Amazon Seller Support for further assistance.
- Provide them with detailed information about the problem, including the ASIN, variation details, and steps taken so far.
- Request their help in resolving the issue and ask for an update within a reasonable timeframe.
Step 5: Monitor and Follow Up
- Keep an eye on the product listing and variation pages to see if the issue gets resolved.
- If the variation reviews still do not combine after contacting Amazon Seller Support, follow up with them for an update.
- Repeat this step until the issue is resolved.
Summary
Dealing with Amazon variation reviews that do not combine can be frustrating, but it is manageable once you understand the underlying causes. By following the steps above, you ensure that your variation reviews combine, thereby providing a better shopping experience for your customers and potentially boosting your sales.
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