To change the applicationId, navigate to the build.gradle.kts file at the app level. In the productFlavors block, modify the applicationId in the pro block to your desired ID for the production release. Additionally, you can change the applicationId in the dev block for testing purposes during development. Ensure that you use distinct applicationIds for dev and pro modes. For example, you can use "com.example.anything.dev" for the dev mode and "com.example.anything" for the pro mode.
Indeed, changing the applicationId can potentially cause errors, especially in the context of Firebase configuration. However, there's no need to worry about it at this stage. We'll proceed to configure Firebase, and everything should work seamlessly afterward.
