Please check the following settings for possible reasons why a specific product is excluded from Nosto Search or Nosto Category Merchandising (Universal):
Check if the product has the availability
InvisibleorDiscontinued. These products are excluded from indexingCheck the active out-of-stock policy if products are excluded due to their stock status
Check the active exclusion policy and the blacklisted products if products are excluded on this basis
Check your active filter rules if you have excluded products with a certain attribute from globally or from specific listings