After migrating to the live site and designating it as the primary site, builds can only be generated from the live site. If you wish to create a build for the staging site, you will need to follow these steps:

- Create a test app.
- Install the test app on your phone.
- Shake the phone to bring up the website change option.
- Select the staging site to test the build.

This process allows you to generate and test builds specifically for the staging site.