Custom Field Name assigned/move to Woocommerce product variation

When I add a custom field (with ACF) in Wordpress, after that I want to assign the custom field name to Woocommerce product variation. Probably this code need to be added in theme folder > [login to view URL] After that I need to show the specific code on the product detail page. Probably with a code like this: <?php the_field('custom-field-name'); ?>