nicolas wrote: 1. There is no option "search variants" for the Smart search.
The Smart search uses plugins from the "finder" group, not plugins of the "search" group.
This plugin of the "search" group is for the old search system of Joomla, which has been removed with Joomla 4.
So this is the normal behavior.
I think it would be better to have an option to exclude variants from the search results.
nicolas wrote: How are you unpublishing the product ? Are you doing it via the HikaShop interface ? Is it somehow linked to the products having variants ?
Yes. The main product has been unpublished by HikaShop interface, but since it has two variant products, it will display the variant product in the search results.