These steps will only apply to eBay, Shopify, and WooCommerce marketplaces.
Using this method, you'll have to manually create the Option values and Variation names.
For Amazon, you'll add the respective parent and variation listing ASINs
For Walmart, you'll have to create and setup variations directly on Walmart seller central as every parent and variation listing will have their own UPCs
Step 1: Add the item(s) into your SellerChamp manifest (eBay, Shopify, WooCommerce marketplace).
Step 2: Directly across the item, click on the Item Options button, and from the drop-down, select View/edit variations
This will display the add Variants pop-up.
Click on the Add variants link in order to manage variations.
Here you'll manually add variations for the listing.
Refer to the image below in order to get an idea of how to add variant options, variant names, variants SKUs, prices, quantities, etc.