1. Return to the My Domain Setup page using one of theseways. Click the login link in the activation email that you received. Or, from Setup,enter My Domain in the Quick Find box, then selectMy Domain. Or, log out of your org, and log in toSalesforce using your new My Domain subdomain name.
2. Test the new subdomain by clicking tabs and links. In the browser address bar,notice that the URLs to all your pages display your new subdomain.If you’ve customized your org, for example,with buttons or Visualforce pages, make sure that you test your changesthoroughly. Look for broken links due to hard-coded references (instance-basedURLs such as https://na30.salesforce.com). Change these URLsto use your subdomain instead. For more information, enter “hard-coded references”in Salesforce Help.
3. Optionally, test the subdomain in a sandbox environment.
4. Optionally, customize your subdomain login page, and add authentication services,like social sign-on.While you can make these changes after you deploy, it’s better to set up and testthem in a smaller environment.
5. To roll out the new My Domain subdomain to your org, from Setup, enterMy Domain in the Quick Find box, then select MyDomain. Click Deploy to Users, and clickOK.This step is often overlooked and causes much confusion. Your users can’taccess the org with the subdomain URLs until you deploy it.