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This article applies to selling in: United States

Variation relationship FAQ

How do I create a product that includes variations using an upload?

How to add a new child (variation) to an existing parent created by another seller?


  1. Look up the product details page for an existing parent item and find its ASIN. The parent ASIN # is generally located in the Product Detail section on the detail page of any child ASIN.
  2. In your inventory file template (Inventory file templates and BTG), add the new child ASIN’s information and fill in fields exactly as if it were a child within a parent-child variation set.
    Note: Match the Variation Theme field to the existing parent.
  3. Add a parent item and fill in the fields that create the parent-child relationship with the new child item and that mirrors the variation theme of the child item. For the Parent item row, consider the following points:
    1. In the SKU field for the parent row, you may leave the field blank (if you wish the system to auto-generate a SKU number) or you can choose any alphanumeric string of 40 characters or less, but must be unique to your listings. In other words, it must not duplicate any of your other SKUs.
    2. Specify the parent ASIN in the Product ID field.
    3. In the Product ID Type field enter "ASIN". This will associate your new child item with the ASIN of the existing parent item.
  4. In the Update/Delete column, enter the following:
    1. Update – for the parent SKU (since we are creating this parent in your inventory from scratch)
    2. PartialUpdate – for the child SKU(s), provided these child SKUs are already present in your inventory.
      Note: If the child ASIN is already present in your inventory, use “PartialUpdate”. Otherwise, use "Update".
  5. Validate and upload the completed inventory template. Make sure to enter all the mandatory (*) information in the inventory template.

How to reassign a child item to a new parent?

To reassign a child item to a new parent:

  1. Delete the child item (removes its relationship to the parent). You may need to wait 24 hours before you can re-use your SKU.
  2. Re-add the child item, replacing the old value in its Parent SKU field with the SKU of the new parent.
  3. Validate and upload the completed inventory template.

How do I combine two ASINs into one variation family?

Refer to Create a new variation family by combining existing standalone listings within your catalog section in Add a variation using Variation Wizard.

Can I enter a variation if there isn't a variation field?

If you do not see a variation field, this product category does not allow variations. You can create variations in most product categories on Amazon.com, and variation themes differ by category. In inventory files, you use variation themes (for example, Size, Color, SizeColor) to describe how your items vary.

To view a list of available variation themes, download the inventory file template for your item’s category and refer to the Valid Values tab for a list of available variation themes.

How do I separate child ASINs into individual ASINs?


  1. Delete the child item (removes its relationship to the parent). You may need to wait 24 hours before you can re-use your SKU.
  2. Re-add the SKU but do not include fill in any of the Variation fields.
  3. Validate and upload the completed inventory template.

Is there a limit for the number of child ASINs that display on the detail page?

Yes. Variation families with more than 2000 child ASINs will not be displayed on the detail page.

Can you create a variation relationship on my behalf?

No. We do not create variations on behalf of sellers.

How can I create new variation listing or match to an existing variation listing?

Refer to Use Add a Product to create variations for information on how Add a Product tool offers the option to create variations.

What should I do when the variation exists in the back-end but the detail pages for the child ASINs do not show an active variation family?

It can take up to two hours after submitting a listing for the variations to appear on the detail page. If variations do not appear on the detail page after that duration, contact seller support.

What should I do if you think that variations are being manipulated by a seller?

When multiple sellers sell the same product through a single detail page, Amazon combines and presents the best product data to ensure customers get the best experience. This suggests that others sellers can change variation families. If you believe a bad actor has manipulated a variation family, such as by adding an invalid product or removing a valid product, contact seller support.

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