If you have a product with a variation, such as Apparel or Shoes, you will need to locate the correct Child ASIN for that product when adding it to a batch in Stratify.
If you don't have the Child ASIN, when you submit the Parent ASIN in the search field, a Variations button will appear.
Click Variations to bring up a list of the existing child ASINs to choose from. After scrolling through the list and finding the correct variation that matches your item, click Select next to it.
This will bring you to the Item Listing Details page and allow you to list the item with the correct Child ASIN for your variation.
If you cannot find the Child ASIN for your variation, you will need to first create the variation in Seller Central before it can be used to list in Stratify. If you're not familiar with this process, please checkout the links below from Seller Central for guidance: