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How to Fix Mendeley Cite Error ECITE 40001 in Word on Mac

Amos Gikunda Oct 10, 2026 869 views

Question details

The user needs to resolve the Mendeley Cite ECITE 40001 error that occurs in existing Word documents on a Mac, even though the plugin works perfectly in brand new documents.

How to Fix Mendeley Cite Error ECITE 40001 in Word on Mac

Product: Microsoft Word
Device & OS: Mac
Scenario: Attempting to use the Mendeley Cite add-in in an existing document filled with footnote citations, resulting in an ECITE 40001 error.
Observed behavior: Reinstalling the Mendeley Word plug-in restores functionality for new documents, but existing files with Mendeley citations continue to trigger the ECITE 40001 error due to document-specific citation data.

Before you start

Always create a secure backup copy of your Word document before modifying or converting citation fields, as converting active citations to plain text is irreversible and removes citation-field functionality.

Solution 1Recommended

Convert Affected Citations to Plain Text

Resolve the ECITE 40001 error by isolating and converting the corrupted footnote citations into plain text, allowing the Mendeley add-in to load properly.

The ECITE 40001 error typically occurs because the existing citation fields within your specific document contain corrupted data or conflicting metadata that the Mendeley Cite add-in cannot process.

By converting these problematic fields to standard text, you remove the hidden code that triggers the crash, enabling the add-in to function again.

Locate corrupted citations

Scroll through your document and identify the specific footnote citations that were added before the error started occurring.

Convert fields to text

Highlight the affected citation fields and use the Mendeley 'Export as Plain Text' feature, or press Cmd+Shift+F9 on your Mac keyboard to manually unlink the Word fields.

Reload Mendeley Cite

Close the Mendeley Cite panel, save your document, and reopen the add-in from the Word ribbon to verify that the ECITE 40001 error is cleared.

Convert Affected Citations to Plain Text

Need citations to remain editable?: If your citations must remain dynamically editable for future bibliography updates, do not convert them to plain text. Instead, contact Mendeley Support directly for database recovery assistance.

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Frequently Asked Questions

Why does the Mendeley ECITE 40001 error only appear in my existing documents?

This error is triggered by corrupted or conflicting citation metadata saved within that specific document. New documents lack this hidden metadata, allowing the Mendeley plugin to load normally.

Will completely reinstalling Microsoft Word fix the ECITE 40001 error?

Usually not. Because the error is tied directly to the citation field codes embedded in your document's text, reinstalling the word processor or the plugin generally will not fix existing corrupted files.

How do I safely back up my document on Mac before modifying citations?

Locate the file in Finder, click on it, and press Command + D to duplicate it. Alternatively, open the file in Word and use 'File' > 'Save As' to create a copy with a new name, such as adding '_backup' to the filename.

Can I undo the conversion to plain text later if I change my mind?

No, converting citation fields to plain text permanently breaks the link to your Mendeley library and removes all dynamic functionality. You would need to manually re-insert each citation if you do not have a backup.

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