How to use Zotero to check the DOI of literature and automatically update citations?

Zotero enables automatic DOI checking and citation updating through its DOI Metadata Retrieval feature. This function can automatically locate and integrate correct bibliographic details when DOIs are present or discoverable. The process relies on Zotero accessing CrossRef and other databases using available identifiers like DOIs, PubMed IDs, or ISBNs. Users should ensure "Automatically attach associated PDFs and notes when saving items" and "Automatically update library items from the web" preferences are enabled within the "General" and "Advanced" tabs. Manual updates for individual items or collections are triggered via right-click and selecting "Refresh Item" or "Refresh Collection". Verification post-update is essential for accuracy. To implement this, first enable automatic updating via Preferences > General > Automatically attach associated PDFs and Automatically update items. Add items to your Zotero library manually or with a connector. For existing items lacking DOIs or needing updates, select items and right-click, choosing "Refresh Item". Review the suggested updates carefully before accepting. This workflow maintains citation integrity and reduces manual data entry.