Changing the Firebase Application ID requires certain steps to be followed. As you know, the application ID is a unique identifier for your application which is used by Firebase to associate your app with your Firebase project.
To change the Firebase Application ID, you need to create a new Firebase project with the new application ID. After creating the new project, you must import all the data from the previous project to the new one. The data includes your app's database, authentication information, storage, and more.
Some of the steps you should follow include:
1. Access your Firebase console and create a new project with the new application ID.
2. Copy the configuration settings for the new project into your app's code.
3. Migrate your Firebase data from the previous project to the new one.
4. Test the app thoroughly to ensure proper functionality.
Keep in mind that changing the Firebase application ID must be done carefully to avoid losing important data or interrupting the app's functionality. It is best to make a backup of your data before undergoing any changes.