function my_add_user_role( $user_id, $role ) {

    if ( ! function_exists( 'wp_fusion' ) ) {
        return;
    }

    if ( 'enabled' == $role ) {

        add_filter( 'wpf_user_register', 'my_wpf_user_register', 10, 2 );

        wp_fusion()->user->user_register( $user_id );
    }

}

add_action( 'add_user_role', 'my_add_user_role', 10, 2 );
add_action( 'set_user_role', 'my_add_user_role', 10, 2 );

function my_wpf_user_register( $post_data, $user_id ) {

    $post_data['user_email'] = get_user_meta( $user_id, '_company_email', true );

    return $post_data;

}

function my_wpf_get_contact_id_email( $email_address, $user_id ) {

    $company_email = get_user_meta( $user_id, '_company_email', true );

    if ( ! empty( $company_email ) ) {
        $email_address = $company_email;
    }

    return $email_address;

}

add_filter( 'wpf_get_contact_id_email', 'my_wpf_get_contact_id_email', 10, 2 );