Why do we need custom statuses? As always, there are many use cases. I personally used them only once — to mark products that didn’t fall into any category when importing from the Yandex Market.
Below is an example of creating a custom post status. More about all the parameters can be found in the official WordPress Codex. I just want to highlight the following points:
- The "label_count" parameter must be defined using the "_n_noop()" function.
- Unfortunately, custom statuses are not automatically shown on the post edit/create page or in the post list table (when hovering over the post title to see quick actions).