Mandatory Information:
Barcode or ASIN number
Price

Optional Fields:
Product Status: Although it is mandatory information, it does not need to be included in the Excel file. You can declare that the entire product list is used or unused.
Currency: Although it is mandatory information, it does not need to be in the Excel file. All product list in USD, EUR, TRY etc. You can declare that the price is unitary.
Name of the product
Brand
Category
SKU/Stock Number
The amount of stock
Image URL
Product URL
Number of Products in a Package: If a multi-pack made of the same product is made, it expresses the information of how many products will be sent in a unit sale (bundle).
Fixed Selling Price: If there is a mandatory selling price that the seller must offer, regardless of profitability, it should be specified in this field. Some books etc. may be in this category.
Product description
Used Item Description