How to customize your 404 page

Your 404 page

When a link in your app leads nowhere, because the content was moved or deleted, or the address was mistyped, your users land on its 404 page.

Make it look and sound like your app. Here, River Daily's 404 page still shows texts in French.

You'll find it in Settings, at the bottom left… under App Settings: 404 error.

The preview shows your 404 page right away, and every change appears there as you make it, before you save.

Under Title, Generic text shows a large title, here 404, with a baseline under it.

Replace the baseline with a line of your own… and the preview follows as you type. Then write the text, up to 200 characters.

Say what happened and how to get back to your content, in one short paragraph.

Under Font, choose the text's font. Pick one your app already uses, like Rozha One here.

The font applies to the text only: the title and the baseline keep their own style.

Then set its size with the slider.

This icon gives the text its own sizes for tablets and computers, a line height and a letter spacing.

Here, a little more line height makes it easier to read.

Now the colors: the background… the Heading color, for the title and the baseline… and the text color.

Light texts on a dark background stay easy to read.

Prefer a picture, like your logo? Under Title, choose Image.

Upload a square image of 1024 by 1024 pixels, in JPG, PNG or GIF.

The image takes the place of the title and the baseline, and the text stays below it.

Click Save to keep your changes.

Your new 404 page reaches your app once you publish with Publish my project, with no need to resubmit your app to the stores.