Replace WooCommerce product link in shop with a custom product page url

replacement-url.php

<?php

add_action( 'woocommerce_product_options_advanced', 'woostore_elementor_product_link' );
function woostore_elementor_product_link() {
	global $woocommerce, $post;
 
	echo '<div class="options_group">';
  
	woocommerce_wp_text_input( 
		array( 
			'id'          => '_elementor_url', 
			'label'       => __( 'Elementor Page link', 'actions-pro' ), 
			'placeholder' => 'http://',
			'desc_tip'    => 'true',
			'description' => __( 'Enter the custom Elementor product page url for this product to link to from the shop page.', 'actions-pro' ) 
		)
	);
  
	echo '</div>';
}

// Save Field
add_action( 'woocommerce_process_product_meta', 'woostore_link_to_elementor_product_save' );
function woostore_link_to_elementor_product_save( $post_id ) {
	if ( ! empty( $_POST['_elementor_url'] ) ) {
		update_post_meta( $post_id, '_elementor_url', esc_attr( $_POST['_elementor_url'] ) );
	} else {
		update_post_meta( $post_id, '_elementor_url', esc_attr( $_POST['_elementor_url'] ) );
	}
}

add_action( 'init', 'woostore_product_change_link' );
function woostore_product_change_link() {
	global $post, $product;
	if ( get_post_meta( $post->ID, '_elementor_url', true ) ) {
		remove_action( 'woocommerce_before_shop_loop_item', 'woocommerce_template_loop_product_link_open', 10 );
		
		add_action( 'woocommerce_before_shop_loop_item', 'woostore_template_loop_product_link_open', 10 );
	}
}

function woostore_template_loop_product_link_open() {
	global $post, $product;
	$post_meta_value = get_post_meta( $post->ID, '_elementor_url', true );
	echo '<a href="' . esc_url( $post_meta_value ) . '" class="woocommerce-LoopProduct-link">';	
}

hello, can i ask a question regarding this code snippet.
I tried to implement this code in my side but it didn't work. So i must implement it wrong.

where to replace the text to suit to my my website.

For example.
if i have product id '123'
product link 'www.mywebsite/product'
custome product page'www.mywebsite/customproduct link'

Can someone show me where to replace the text in the code?

im sorry if the question is to basic. I'm not a coder. I really appreciate the help and im sure it will help others as well.

this is code is not working on my website, this not even replace the product page link.