Hello,

I saw the screenshot you attached.

Unfortunately, it is not possible to show a countdown timer on variable products because WooCommerce requires all product variations to have separate prices and sale schedules accordingly. You can try to put the countdown timer to the short description and set the date manually.

To display the sale badge on variables you need to set the sale price for each of the variations from the edit product.

Screenshot for Clarification: https://ibb.co/3T3SPyX

Then you need to set the badge to display the percentage from Theme Settings >> Shop >> Product Labels.

Screenshot for Clarification: https://ibb.co/GVJhJwJ

Best Regards.