How to remove sale price for WooCommerce

This will use ‘Merge‘ function but need to add date for ‘sale date from‘ and ‘sale date to‘ to stop sale price

1. Go to: WooCommerce > CSV Import Suite.
2. Select ‘Export Variation‘
3. After you get export file, must remove other column that you not use except for required column. (please see no 4)
4. Must keep ‘Parent’, ‘parent_sku’,’post_parent’,’ID’,’SKU’,’meta:_sale_price_dates_from’ and ‘meta:_sale_price_dates_to’ – please see example file
5. For ‘meta:_sale_price_dates_from’ and ‘meta:_sale_price_dates_to’ please fill in pass date,
6. Then save to csv file, and do ‘Merge Variation‘ again