MarkJ

OK ty, but it is also a question, if there is any way how to acomplish that.

I asked hosting, they don’t think it is issue on their end.
I found out that this issue is probably only with .com emails, other domains work. Any idea what to do next? I already tried to turn off all plugins and change the theme.

Btw mails are working, site is sending even to .com, only form is failing when .com is in email field

I checked it and unfortunately yes. Is there any workaround to add only one even when they have same prices? Maybe some snippet?

Ďakujem pekne 🙂 mne pôvodne napadol takýto spôsob:

add_filter('wpify_woo_xml_heureka_skip_product',function($skip, $product) {
   /** @var WC_Product $product */
   if ($product->has_term('kategoria_produktu', 'product_cat')) {
      $skip = true;
   }
   return $skip;
},10, 2);

Viete povedať aký by to bol rozdiel, či to je jedno? Samozrejme preferujem to čo je menej zaťažujúce.