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How to Fix the Bookmark Not Defined Error in Word Footers
Question details
The user needs to resolve a 'Bookmark Not Defined' error that appears in a Word document's footer, despite visible bookmarks and content appearing completely normal.
- Product
- Microsoft Word
- Device & OS
- not provided
- Scenario
- Editing a document with multiple sections, distinct header/footer settings, and cross-references.
- Observed behavior
- Microsoft Word displays a 'Bookmark Not Defined' error message in the footer. This is typically caused by broken cross-references hidden within different footer types across document sections.
Before troubleshooting, it is highly recommended to enable formatting marks by clicking the 'Show/Hide ¶' button on the Home tab, which makes it much easier to spot hidden section breaks and document fields.
Enable and Check Hidden Footer Settings
Reveal hidden footers such as the First Page or Odd and Even footers to locate and remove broken cross-references causing the error.
In complex documents, Word allows different footers for the first page, odd pages, and even pages. When a cross-reference points to a deleted bookmark inside one of these hidden footers, the error occurs but remains invisible until those specific footer types are revealed.
Double-click anywhere inside the footer area of your document to activate the Header & Footer settings tab on the ribbon.
In the Header & Footer tab, locate the 'Options' group and check both the 'Different First Page' and 'Different Odd & Even Pages' boxes.
Scroll through your entire document. Look closely at the newly revealed first-page, odd-page, and even-page footers in every section to locate the 'Bookmark Not Defined' error text.
Highlight the error text. You can either press the Delete key to remove the broken cross-reference entirely, or right-click it to edit the field and point it to a valid, existing bookmark.
Easily Manage Headers, Footers, and Bookmarks in WPS Office
WPS Writer provides a highly compatible and intuitive interface to manage headers, footers, and document cross-references, allowing you to easily fix formatting errors in your Word documents.
- 1. Open your Document: Launch WPS Writer and open the document containing the footer error.
- 2. Access Footer Settings: Double-click the footer area to automatically open the Header and Footer tab.
- 3. Reveal Hidden Footers: Check the 'Different First Page' and 'Different Odd and Even Pages' options in the ribbon.
- 4. Locate and Fix: Scroll through the sections, locate the broken cross-reference in the footer, and safely delete or update it.
Frequently Asked Questions
Why does the 'Bookmark Not Defined' error happen in Word?
This error occurs when a cross-reference or a field in your document points to a bookmark that has been deleted, renamed, or accidentally typed over. In footers, this is especially common when copying and pasting content between different document sections.
How can I view a list of all active bookmarks in my document?
You can view all current bookmarks by navigating to the Insert tab and clicking on 'Bookmark'. A dialog box will appear listing every active bookmark in the document, allowing you to go to them directly.
Can I prevent this error when updating my table of contents?
Yes. When updating your Table of Contents or other fields, always use 'Update Entire Table' rather than just updating page numbers. Furthermore, avoid deleting text that contains hidden bookmark brackets.
How do I unlink footers between different document sections?
Double-click the footer area to open the Header & Footer tab, click in the footer of the new section, and toggle off the 'Link to Previous' button. This isolates the footer so changes or errors do not carry over from the previous section.
