Login to your Bookmark account, and select the website you would like to edit. Then, click the Site section in your website builder sidebar.
And then click into the SEO section.
In the SEO settings, scroll down to the option to the Custom 404 page toggle, and turn it on.
Now that your Custom 404 page has been turned on, save your changes, and once your page refreshes, you will be on your Custom 404 page where you can add and edit the content using your modules.
When you are happy with the Custom 404 Page, save and publish your website. This page will appear whenever a page on your website cannot be reached.
You can edit this page at any time, or turn the feature 'Off' by going back into Site in the editor sidebar, clicking SEO, and navigating to the Custom 404 toggle.
To exit the 404 page in the builder, simply click on any of the pages in your menu bar.
If you have any more questions or need any more tips and advice, we are here for you. Don’t hesitate to reach out to our Live Chat at any time, and check out some more of our helpful guides!