I want to know this too.
Would be nice if there would be check marks in the WP User Admin to select which user meta would also appear in BP Profile.
Vice-versa, if custom profile fields made in BP could then appear in WP Admin.
This type of syncing seems necessary as WPSocialLogin populates useful info into the User WP Admin but there is no easy way to now get those WP User Admin fields into the BP Profile. (and I’m sure other plugin that are design to work with WP Admin don’t populate BP profiles). Seems like this “complete” syncing does not exist.
