To fix this error in MS Word: “Error! Bookmark Not Defined”, follow these steps:
- In MS Word, from the View menu, select Toolbars, and then click Outlining.
- If the document contains multiple tables of contents, place the insertion point inside the table of contents that is causing the problem and needs to be updated.
- On the Outlining toolbar, click the Update TOC button.
This will refresh the TOC, which updates the reference and resolves the error.
