Woocommerce exclude specific category products from related products

Question

I'm trying to exclude products from two specific categories (fine watch, fine jewelry) from showing up in the related products on the content single products page. The closest idea I have stumbled upon is this code from a file named related.php in woocommerce\template\single-product\ :

$args = apply_filters('woocommerce_related_products_args', array(
'post_type'     => 'product',
'ignore_sticky_posts'   => 1,
'no_found_rows'     => 1,
'posts_per_page'    => $posts_per_page,
'orderby'       => $orderby,
'post__in'      => $related,
'post__not_in'      => array($product->id)
 ) );

Any idea how to modify this code or am I looking at the wrong thing?

Answer 1

You are supposed to use

'post__not_in'      => array($product->id)