enq.php

add_filter('pisol_enq_show_variation_for_simple', '__return_true');
add_action( 'wp_enqueue_scripts', function () {
	$js = "
	jQuery(document).on('pi_add_to_enquiry_data', function(e, data) {
		if (jQuery('.woosb-products').length == 0) return;
		jQuery('.woosb-products .woosb-item-product').each(function() {
			var name = jQuery(this).data('name');
			var val = jQuery('select', this).val();
			if(jQuery('select', this).length > 0){
				if(val){
					data['variation_detail'][name] = val;
				}
			}else{
				 if(!val) val = ' ';
				 data['variation_detail'][name] = val;
			}
		})
	});
  ";
	
	wp_add_inline_script('jquery', $js, 'after');
}, 100 );