stroyka

Hi!

I fixed my issue by adding a WordPress filter using the “woocommerce_structured_data_product” filter option. This allows you to add new data to the already generated WooCommerce data.

Add to function.php your child theme

/*
 * Missing data WooCommerce
 */
function custom_woocommerce_structured_data_product ($data) {
	global $product;
	
	$data['gtin13'] = $product->get_meta( '_wpm_gtin_code' );
	
	return $data;
}
add_filter( 'woocommerce_structured_data_product', 'custom_woocommerce_structured_data_product' );