SharePoint 2013 introduced a new feature know as Re-Index to list and document library. This feature will be very much helpful if you have configured a new Managed Property and added it as a Site Column to your List or document Library.
This feature will help to mark the list and document library to be picked up by a Continuous crawl, regardless of whether the items have actually changed.
ReIndex a SharePoint 2013 List and Document Library:
First Open the list or document library, then from the Ribbon click on Settings.
Then click on Advanced settings.
From the advanced settings page, check the button name as:
Reindex List (for SharePoint list)
Reindex Document Library (For SharePoint document library)
Once you will click on the above buttons, it will ask you a confiramtion dialog, click on Reindex List or Reindex Document Library.
This feature will help to mark the list and document library to be picked up by a Continuous crawl, regardless of whether the items have actually changed.
ReIndex a SharePoint 2013 List and Document Library:
First Open the list or document library, then from the Ribbon click on Settings.
Then click on Advanced settings.
From the advanced settings page, check the button name as:
Reindex List (for SharePoint list)
Reindex Document Library (For SharePoint document library)
Once you will click on the above buttons, it will ask you a confiramtion dialog, click on Reindex List or Reindex Document Library.