With the Contacts advanced setting allow-toggling-contact-type, you can easily correct contact type input mistakes for an existing contact in the Contacts module without having to create a new contact.
This setting requires True and False buttons.
This setting's default value is False, so you can’t toggle between the contact types of individual and organization within an existing contact.
Change the default
To change the default, navigate to Settings > Advanced and search for allow-toggling-contact-type. Change the setting to True to allow toggling between contact types within an existing contact. If you enter an individual contact as an organization by mistake, setting allow-toggling-contact-type to True allows you to change the contact type to individual without having to create a new contact.
The allow-toggling-contact-type advanced setting doesn’t conflict with any other setting. There aren’t any other features that influence the values or functionality of the allow-toggling-contact-type advanced setting. When the allow-toggling-contact-type advanced setting is set to True and you change the contact type within an existing contact, the data originally attached to the contact will be kept but not displayed.