Hello,
Since variants are also child products for a product, you can add a
skip rule to parent_product_sku field and in the rule set all the product_sku values which needs to be eliminated from your import. This rule will compare the value set with the one in the import file and skips the record if matched. Hope it is clear. if not, please post the sample of your import file along with some explanation on what you would like to do.
Kind regards,
Tharuna
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