Blog

/*** Exclude products from a particular category on the shop page****/
function custom_pre_get_posts_query( $q ) {
  if (( !is_admin() && is_main_query()) OR is_search()) {
  $tax_query = (array) $q->get( 'tax_query' );

  $tax_query[] = array(
  'taxonomy' => 'product_cat',
  'field' => 'slug',
  'terms' => array( 'kits' ), // Don't display products in the given category on the shop page.
  'operator' => 'NOT IN'
);

  $q->set( 'tax_query', $tax_query );
  }
}
add_action( 'woocommerce_product_query', 'custom_pre_get_posts_query' );