Update Table Of Contents. You MUST use styles to format text throughout your document in order for this to work. Right-click the table of contents and select Update Field in the pop-up menu.
Update an existing table of contents Locate and click the table of contents in the document. Click on the Table of Contents to highlight the whole area Youll see that the whole area becomes grayed-out. To perform the update.
To add the new heading to the TOC rightclick the TOC in the book window Set up TOC.
In the Update Table of Contents window select the Update entire table option and click the button. Select Update Field from the context menu. Update page numbers only This only updates the pages that the headings are on and ignores. Had the same issue to update the ToC and googled for it.