To create product variations such as different sizes or colors, you first need a parent SKU. To create variations manually in Seller Central, follow these steps:
1. Go to the "Inventory" tab drop-down menu and click "Add Products".

2. Click the "I'm adding a product not sold on Amazon" link.

3. Select your category and click "Select".

4. Note: If some tabs are not available, you can click the "Advanced Settings" button and fill in the information on each tab.

5. Upload a main image for the parent ASIN, then go into each variation to manage their respective images.

6. Under the "Variations" tab, select your variation type from the menu and list all variations in the relevant cells.

7. Click the "Add Variations" button.

8. Complete all information in the table generated, including Color Map, Seller SKU, Product ID, Product ID Type, Condition, Your price, and Quantity for each variation.

9. Click the "Save and Finish" button at the bottom once you're satisfied with the information entered.
