When you promote a baseline using Deployment Automation (DA):
You select the application process that will execute component processes and the component version the baseline items will be deployed to.
The baseline items are automatically deployed into the component version, which is automatically created during the promotion and named after the baseline specification.
The application process uses the component version to perform an automation task, for example, to deploy baseline items to the DA environment that is mapped to the GSL stage you promoted to.
When you demote a baseline using DA:
The baseline is automatically demoted. The application process is executed with the earlier component version (earlier baseline) against the environment you are demoting from.
You can demote without specifying an application process if the environment you are demoting from does not require a rollback to previous state.
You can select a rollback process, which is specifically designed for demotion, to restore the environment you are demoting from or pick any other version of any component.