This template (previously called Template:Wikidata red link) takes a Wikidata entity number as an unnamed parameter and provides a link to the corresponding article on the English Wikipedia, or its Wikidata entity depending on whether the article exists or not.
Article exists
If the corresponding article exists then a direct link to the article is given (piped to the label on Wikidata).
Explanation: There is no English Wikipedia article yet for this mountain, so a red link is displayed.
To suppress the link to Wikidata use |wd=off, e.g.
{{Wikidata fallback link|Q31692001|wd=off}} →
Explanation: The link to Wikidata is not displayed now.
Label exists but article under that title already exists
If the corresponding article does not exist on the English Wikipedia but there is a different article at the item's label, then to avoid confusion, the label is not linked.
Explanation: there is no English Wikipedia article for this fictional character "Ali", but the page Ali already exists (cousin of the prophet Muhammad) so no link is provided.
Explanation: there is no English Wikipedia article for the Dutch street "Bult", but the page Bult already exists (commune in France) so no link is provided.
No label defined
If there is no English label defined on Wikidata, then just a link to the Wikidata item is displayed. To fix this, please add a label to the Wikidata item.
Explanation: this obscure list of football players does not have an equivalent in the English Wikipedia, and an English label is not defined, so only the Wikidata link can be shown.
Explanation: this Chinese work from the Qing Dynasty on Wikisource has no equivalent in the English Wikipedia, and an English label is not defined, so only the Wikidata link can be shown.
Icon
The OOjs UI pen icon can be used instead of the [Wikidata] link.
