If you have missing entries
Missing entries often happen because headings aren't formatted as headings.
For each heading that you want in the table of contents, select the heading text.
Go to Home > Styles, and then choose Heading 1.
Update your table of contents.
To update your table of contents manually, see Update a table of contents.
Go to the tutorial
In desktop Word, go to File > New, and search for table of contents.
See Also
