Move Domains Between Applications Follow

A domain can be moved between applications easily. 

1. Delete the domain from the source application.
2. Add the domain to the destination application. 
   1. Create the Let's Encrypt SSL certificate on the destination application. 

Delete the domain from the source application

On the Domains section on the source application, click Delete next to the domain to be moved. 

Add the domain to the destination application

Navigate to the destination application and add the domain to the DNS page.

Create Let's Encrypt Certificate

Click on HTTPS on the left-hand navigation, click the Renew Certificate button. 

An automatically renewing Let's Encrypt certificate is created. 

The certificate will auto renew every 3 months. 

Validation

In a browser in incognito mode, verify the domain and SSL is functional on the new app. 

Use SSLShopper or another web tool to verify the domain is working. 

https://www.sslshopper.com/ssl-checker.html#hostname=https://switch-domains.section-demo.net/