Simplify checkout for virtual products or order via WhatsApp. Add this code in function.php.

CODE PHP

/**
 * @snippet Simplify Checkout if Only Virtual Products
*/

add_filter( 'woocommerce_checkout_fields' , 'njengah_simplify_checkout_virtual' );

function njengah_simplify_checkout_virtual( $fields ) {

   $only_virtual = true;

   foreach( WC()->cart->get_cart() as $cart_item_key => $cart_item ) {

      // Check if there are non-virtual products
      if ( ! $cart_item['data']->is_virtual() ) $only_virtual = false;
   }

    if( $only_virtual ) {

       unset($fields['billing']['billing_company']);

       unset($fields['billing']['billing_address_1']);

       unset($fields['billing']['billing_address_2']);

       unset($fields['billing']['billing_city']);

       unset($fields['billing']['billing_postcode']);

       unset($fields['billing']['billing_country']);

       unset($fields['billing']['billing_state']);

       unset($fields['billing']['billing_phone']);

       add_filter( 'woocommerce_enable_order_notes_field', '__return_false' );

     }
     return $fields;

}