Course product shortcode

course_product.php

/*-----------------------------------------------------------------------------------*/
/*	Course Product
/*
/*   USAGE : xx is course id
/*  [course_product id="xx" details="price"] 
/*  [course_product id="xx" details="sku"] 
/*  [course_product id="xx" details="sales"] 
/*  [course_product id="xx" details="note"] 
/*  Above shortcode can also be used on certificate pages and remove the id field:
/*  [course_product details="sku"] , this will display SKU code of Product on certificate
/*
/*-----------------------------------------------------------------------------------*/

if (!function_exists('vibe_course_product_details')) {
	function vibe_course_product_details( $atts, $content = null ) {
		extract(shortcode_atts(array(
			'id' => '',
			'details' => '',
	    ), $atts));
		
		if(isset($id) && is_numeric($id)){
     		$course_id = $id;	
		}else{
			if(isset($_GET['c']) && is_numeric($_GET['c']))
				$course_id=$_GET['c']; // For certificate use
			else
				return;
		}

		if(get_post_type($course_id) == BP_COURSE_CPT){
			$product_id = get_post_meta($course_id,'vibe_product',true);
			if(isset($product_id) && is_numeric($product_id)){
				switch($details){
					case 'sku':
						$return = get_post_meta($product_id,'_sku',true);
					break;
					case 'price':
						$product = wc_get_product( $product_id );
						$return = $product->get_price_html();
					break;
					case 'sales':
						$return = get_post_meta($product_id,'total_sales',true);
					break;
					case 'note':
						$return = get_post_meta($product_id,'_purchase_note',true);
					break;
				}
			}
		}
		return $return;
	}
	add_shortcode('course_product', 'vibe_course_product_details');
}

a query, I am placing a timer that takes the id of the product, I need to deploy it on course details, but when calling the id that point, I throw the id of the course, but I can't call the product ID, I will serve this code for create the link between course associated with the product?

and where would you put this code in the wplms-customizer?