Problem:
Site audit error: WPV-pages have no self-referencing hreflang
Solution:
However, irrespective of what tool/plugin you are using, the thing is that the pages reported as missing the self-referencing hreflang links are search results and paginated View results.
As such, they are not necessarily equivalent to a similar page in the other language anyway, and it may not be appropriate to add hreflang links on such pages. (A similar search in different languages may produce different results.)
We have about 20 pages that all share the same layout, just slightly different content, this we can create custom fields however how do target specific pages for a 'page' temple?
Solution:
The simplest way is:
Find and edit those specific pages, in section "content template" choose the specific content template manually