Custom 404 page error?

[Robb_Barrett]

How do we create a custom page for a 404 error?  Right now, users are getting a purple page with The Raven by Poe.  Cute, but not exactly the image that's best for our customers.  I would like to make sure we have a brand approved page.

[Robb_Barrett]

Thank you.

We have that set, but from time to time we still hit the Purple Page of Death.  

Before you ask me to send you a link, I'll need to remember which one I was looking at that gave me the error.

[Rafael_Santoni1]

Your Marketo admin should set it up in the admin section of Marketo. It's the landing pages setting called "Fallback Page". All that is needed is the URL of a page you want to show in place of a 404 error.