Allow shop_manager to edit Privacy policy page and WordPress / WooCommerce

fct_woocommerce.php

<?php

/**
 * Allow the shop manager to edit the "privacy" page on WooCommerce
 *
 * @return void
 */
function update_shop_manager_caps() {
	if (get_role('shop_manager')) {

		$shop_manager_role = get_role('shop_manager');

		$shop_manager_role->add_cap('manage_privacy_options', true);
		$shop_manager_role->add_cap('manage_options'); // You need to enable this caps AFTER the previous one
	}
}

add_action('admin_init', 'update_shop_manager_caps');