Steps to edit your information in Business Manager:-
1. Go to Business Settings.
2. Click Business Info.
3. Below My Info, click edit.
4. Make your changes.
5. Click Save.
Facebook will send you a confirmation email to verify your changes. In the email, select Confirm Now. If you don't see your confirmation email in your inbox, check your spam folder.
Watch the full video To Change Your Name On Facebook Business page👇👇👇