Why is a knowledge base link not appearing on a title in WorldCat Discovery?

First, make sure that you have the monograph or journal title selected in Collection Manager. If it's an article record, make sure that the article falls within your coverage date range.
Only certain publication types and coverage depths surface links in WorldCat Discovery. See Publication types and coverage depths that surface links.
To surface knowledge base links on article records, WorldCat Discovery uses the ISSN or title (more than 3 words match not including articles like "a" "the") to look for a match in the knowledge base. If this is not present in the article metadata, a knowledge base link will not appear.
To surface knowledge base links on monograph title records (ie. eBooks, eVideo, eAudio), WorldCat Discovery uses the OCLC number, ISSN/ISBN, or title (more than 3 words match not including articles like "a" "the") to look for a match in the knowledge base.
If you have a title selected in more than one collection from the same provider, where the titles have exactly the same URL and share the same coverage, then the entries will be de-duplicated in WorldCat Discovery, and will only present one of those links on the item record.

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