Log in to your Amazon seller account and go to the “Inventory” tab.
Select “Add a Product” and search for the product you want to create variations for.
On the product page, click on the “Edit” button and select “Add a variation.”
Choose the variation type, such as size or color, and enter the different variations you want to create.
Fill in the product information for each variation, such as the title, description, and images.
Set the pricing and inventory for each variation.
Submit the variations for review by Amazon. This may take a few days for Amazon to approve.