URI with multiple URL formats (after slug) Is it possible to have a URI like this: /artist/{slug}/news
to create an overview of all news articles of this particular artist?
I tried to set it up with Routes and with a section Entry URI, but I get a 404
You can achieve this by writing a module and using the UrlManager::EVENT_REGISTER_SITE_URL_RULES event.
Basic example:
&lt;?php

use craft\elements\Entry;
use craft\events\RegisterUrlRulesEvent;
use craft\web\UrlManager;
use yii\base\Event;

class CustomModule
{
    public function init()
    {
        parent::init();

        Event::on(
            UrlManager::class,
            UrlManager::EVENT_REGISTER_SITE_URL_RULES,
            static function (RegisterUrlRulesEvent $event) {
                $artistEntries = Entry::find()-&gt;section('artists')-&gt;all();

                foreach ($artistEntries as $artistEntry) {
                    $event-&gt;rules[$artistEntry-&gt;uri] = ['template' =&gt; '_pages/artists/news'];
                }
            }
        );
    }
}

Then, in the _pages/artists/news.twig template, you'll need to extract the artist's slug from craft.app.request.url and use it to get the Entry corresponding to your artist.