First of all download the inventory file template from your seller central account. Open the tamplate and go to the variation section and enter the required information of the product. In the “Parentage” column of the file, enter “child” for the accessory variation.Fill out the rest of the required fields in the file for your product, including SKU, price, and quantity. then save all the changes after that upload the file in your seller central. Wait for few minutes your variations will be shown in your catalog.