You can edit the Amazon ASIN value assigned to a product in your Commerce catalog. This feature is helpful if a catalog product was improperly matched to one of your Amazon listings. Changing the assigned ASIN for the listing does not change the ASIN assigned to a product by Amazon. It only changes the Amazon listing to which your catalog product is matched.
When an assigned ASIN is changed:
View the listing on the Product Listings page (Inactive, Active, or Ineligible tab).
Under Actions, click Edit Assigned ASIN.
This action opens the Product Listing Update page.
For Assign ASIN, enter the new ASIN value.
To save your changes, click Save Listing Update.