If you want to create multiple product listings at the same time, you can do so using inventory file templates. These templates are tab-delimited text files (.txt) that include all of the information that you need to list your products on Amazon.
It is highly recommended that you provide appropriate information for your product listings, to help buyers make a well-informed purchase. Review the following Help pages for best practices while listing a product:
After you create a listing, use Manage Inventory to make changes to listing or product data.
Refer to Create listings one at a time for information regarding how to add one product at a time.