Hello,
Sure, we will be glad to share the information here.
These are the default user meta keys:
first_name
last_name
nickname
email
url
description
If you use these and fill the form, corresponding values will get updated. To verify, you may use them on the form and after submitting it, check the changes on this path: “WordPress Dashboard > Users > Your Profile”, or on top left hover on username on WordPress toolbar and click on “Edit your profile”.
While there is no direct option to display RegistrationMagic’s custom fields in WordPress backend user profile page, it can be achieved on the front-end (on the user area page) by selecting “Add this field to User Account” option in advanced settings of edit field page.
Do let us know if you have any further questions.