Changing your business suite's domain name process involves just a few steps-

Before performing this, we highly recommend to perform a full backup for your files and database.

1. Create a zip copy in your hosting with all your files.
2. Upload and extract directly in your new hosting.
3. Export database from your old hosting.
4. Create a new database and import old database in the new database.
5. Update system/config.php file with new database info and the url.

That's all. You should be able to login with your old credentials and your all data will remain same.