First Time Deploying
To deploy your application, go to the application overview page and then click the deploy button. From there, you can name the domain for your web application and select the application you want to deploy.
Once you select a URL, you are not able to change it.You can also see which variant is deployed under the All Variants section.

Deploying Another Variant
If you wish to deploy another variant, you can go back to the Deploy Web App section and choose a different variant.