Hi, you can try below code:
add_filter( 'woocommerce_get_catalog_ordering_args', 'custom_woocommerce_get_catalog_ordering_args' );
function custom_woocommerce_get_catalog_ordering_args( $args ) {
$orderby_value = isset( $_GET['orderby'] ) ? woocommerce_clean( $_GET['orderby'] ) : apply_filters( 'woocommerce_default_catalog_orderby', get_option( 'woocommerce_default_catalog_orderby' ) );
if ( 'sales_asc_list' == $orderby_value ) {
$args['orderby'] = 'sales';
$args['order'] = 'asc';
$args['meta_key'] = '';
}
if ( 'sales_desc_list' == $orderby_value ) {
$args['orderby'] = 'sales';
$args['order'] = 'desc';
$args['meta_key'] = '';
}
return $args;
}
add_filter( 'woocommerce_default_catalog_orderby_options', 'custom_woocommerce_catalog_orderby' );
add_filter( 'woocommerce_catalog_orderby', 'custom_woocommerce_catalog_orderby' );
function custom_woocommerce_catalog_orderby( $sortby ) {
$sortby['sales_asc_list'] = 'Sales (Lowest to Highest)';
$sortby['sales_desc_list'] = 'Sales (Highest to Lowest)';
return $sortby;
}