Word is updating the fields in the document

You can update an index in Word after you alter the content in a document that contains an index to refresh its display, versus having to recreate the whole thing.

It’s easy to manually add a custom date field and we’ll show you how.Adding a date field to your Word document using the Field command on the Insert tab adds the complete date, without an option to only add the month or year.However, you can manually create a date field with only the items you want in different formats.The Explore Quick Parts button is found in the Text group.The left side of the Field dialog box contains scrolling lists of categories in the Field Names list.