How can I define if an attribute is Searchable or not?

  1. Go to Stores -> Attributes in your Magento Admin Panel
    Defining an attribute for Search in Magento

  2. Search for the Attribute you wish to define. 

    Defining an attribute for Search in Magento
  3. Ensure "Use in Quick Search" is "Yes", to be searchable, else select "No"

    Defining an attribute for Search in Magento
  4. Save attribute and results should be updated in 24 hours if CRON is enabled. If CRON is not enabled, you will need to complete a Manual Sync. If CRON is enabled but you want these changes to reflect ASAP before your CRON runs, clear Magento caches and also do a manual sync. Kindly ensure manual synch is done during a low traffic time.