Problem When Import Product Variation

when i import product with new price and quantity. all product will update except some product with variations . the error message

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WarningCouldn't import options for product AC2421: options can't be updated for a variation or for a product that has at least one variation.

ErrorCouldn't import product AC2421: invalid variation options were provided for this variation.
)

Please check the following article

https://docs.cs-cart.com/4.8.x/user_guide/manage_products/import_export/variation_import.html

Please check the following article

https://docs.cs-cart.com/4.8.x/user_guide/manage_products/import_export/variation_import.html

thank you eComLabs for your reply , and i had solved the problem that was the variation option did not linked to main option in cs cart .

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