Hierarchical custom post type cannot have a parent PAGE

Did you make “criminology” in the “page” post type, an then the rest in whatever custom post type you registered?

Put more abstractly, are you trying to have $domain/$PageSlug/$PostTypePostSlug/ URLs? If yes, then WordPress doesn’t, or doesn’t necessarily easily allow for content type URL mashups like that. If you were to do $domain/$ParentPostTypeSlug/$ChildPostTypePostSlug/ then that should be straightforward to achieve via a hierarchical post type and setting one post to be the child of another.

Also, at least based on your examples, you’re seeing permalinks of $domain/$PostTypePostSlug when normally the post type slug is included, say if I had a post type of movie, then https://mydomain.com/movie/clue/

I see… I thought about the first option you wrote ($domain/$PageSlug/$PostTypePostSlug/) – the one that is not allowed by wordpress.
Thanks anyway for your quick reply and detailed answer.

Tends to be best to keep content types together when it comes to the permalinks.

@tw2113 I have the same question but instead of Pages and Posts, it’s about 2 Custom Post types.

Let’s say that I have as CPT:
– Author
– Book

I would need $domain/$ParentAuthorTypeSlug/$ChildBookTypePostSlug
Exemple:
$domain/william_shakespeare/hamlet

My current challenge folds into 2 parts:
1. How to set the “william_shakespeare” Author type post as the parent of the “hamlet” Book type post
2. How to change the url/slug to take this hierarchy into account.

Thanks a lot!

Basically the same answer as above. Without some decent amount of permalink rewrite rule hoop jumping, they don’t make it easy to mix content types in one permalink, due to how permalinks are used to determine what to query.

I wonder what https://www.ads-software.com/plugins/permalink-manager/ or perhaps their pro version, could do here, but I don’t know their product intensely to be able to say definitively that they can handle this.