Does the setup fail when you configure a custom domain? Learn about possible problems causing the failure and how to troubleshoot them.
You are already using your custom domain in a CloudFront distribution that was previously set up.
Remove the Alternate Domain Names (CNAME) from the other CloudFront distribution or delete the other CloudFront distribution completely. Both options can be accessed from your AWS console.
You are using CloudFlare with the “proxied” setting.
Switch the setting from “proxied” to “DNS only”.
You took too long to add the CNAME records to your DNS configuration.
After 72 hours the process will fail automatically if the CNAME couldn’t be found.
When starting the process again, make sure to complete this step within 72 hours.