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# What separate feeds are needed for uploading products with variants?

When uploading products that contain different variant types, a separate feed is required for each unique variant combination. Variant option columns cannot be left empty in an upload feed, so products must be grouped according to which variant options they contain.

For example, if your supplier provides products that may include Color, Size, Flavor, or no variant at all, you must create one feed per variant combination:

• A feed for products with both Color and Size
• A feed for products with Color only
• A feed for products with Flavor only
• A feed for products with no variant options

This separation ensures each feed only contains products with the required variant data, allowing them to import successfully without missing variant values.