In order to create a custom 404 page, a page must be created and the Path database property must be assigned a value of "/404". When the Path property matches the value "/404", Bullet will automatically recognize it as a 404 page and display it in the event of any 404 occurrences.

You can add all necessary elements, such as callouts, headings, and images, to make the page aesthetically pleasing. The global styles and head and body codes will also be added to the page.