Add meta to the user after successful registration

/*
 * Add meta to the user after successful registration and email confirmation.
 */
add_action( 'wppb_register_success', 'wppbc_create_custom_id', 10, 3 );
function wppbc_create_custom_id( $request, $form_name, $user_id ) {
   if ( $user_id == '0' ) {
      return ;
   }
   update_user_meta( $user_id, 'new_meta_name', 'new_meta_value' );
}
 
// same thing for email confirmation
add_action( 'wppb_add_other_meta_on_user_activation', 'wppbc_create_custom_id_on_email_conf', 20, 2 );
function wppbc_create_custom_id_on_email_conf( $user_id, $meta ) {
   update_user_meta( $user_id, 'new_meta_name', 'new_meta_value' );
}