[Clem]

Hello

If I want to customize page 404, do I need to create a specific page ? Or is it possible to customize the default one ?
How can I do that ?

Thanks

Clémence

[serkan]

Hi, this is not available by default, needs more further customizations, if you are not familiar to coding you may consider hiring an expert at wpkraken.io to do the job for you.
You can check out this related topic;
https://elementor.com/blog/create-custom-wordpress-404-page/
If you just want to change the text, you can use loco translate plugin.
Thanks