You may want to insert a link pointing to a Confluence page that does not yet exist, but which you intend to create later. This type of link is called an undefined link.

To add an undefined link for later creation of a page:

1. Edit the page in which the link should appear.
2. Type '[' to trigger autocomplete, and type the name of the undefined page. Alternatively, type the text first, then select the text and type '['.
3. Choose Insert Link to Create Page.

When you save the page, Confluence colours the undefined link red. When someone clicks the link, the new page opens in edit mode. That person can then enter the page name, add content and save the page, as usual.