Hide sidebar on custom 404 error page

Hi Randy,

Is the new custom 404 page just a static page?

If so can you try if the sidebar layout options in the metabox work?
https://docs.generatepress.com/article/sidebar-layout/#different-sidebar-layouts-for-individual-pages-and-posts

Let me know :)

No, Leo it's a 404 page that I created using the instructions in the provided link: https://generatepress.com/forums/topic/how-to-redirect-404-error-to-custom-page/
(which I why I originally posted the followup question on that thread :) )

In that case try using a layout element with the same display rule:
https://docs.generatepress.com/article/layout-element-overview/#sidebar

Ok, getting somewhere I think Leo!

I created two Elements:
- A Block-Hook Element set to generate_do_tempalate_part assigned to Location 404 Template: This has the contents of the 404 page
- A Layout Hook Element set to Location 404 Template that has only Content shown (no sidebars)

That successfully hides the sidebar on the 404 error. (Kind of complicated to set up a 404 error page, but if that's the easiest approach, that ok!)

One final follow-up. How do I disable the AdSense ad that is trying to load? The ad is currently loaded as a Hook Element assigned to generate_after_header. It's in a div with the class rlmtopaddiv. How do I disable that on this 404 page?

I tried using something like this in the functions.php, but that didn't work:
add_action('generate_after_header', function() {
if ( is_404() ) {
//not sure what to put here
}
});

Sample page below

The ad is currently loaded as a Hook Element assigned to generate_after_header.

In that case couldn't you just add the 404 page to the exclusion rule?

Ah, great! I didn't realize you could add the 404 Template as an exclusion rule. That worked! Thanks Leo!

No problem :)